Pub Date : 2024-06-19DOI: 10.1088/1572-9494/ad48fe
Giuseppe Raguní
Effects of a Bohmian type quantum-relativistic theory are explored. The model is obtained by introducing a new and independent time parameter whose relative motions are not directly observable and cause quantum uncertainties of the physical observables. Unlike the usual de Broglie–Bohm theories, the Quantum Potential does not directly affect the observable motion, but determines the one that is relative to the new time variable. It turns out that the Zitterbewegung of a free particle, of which a more general law is obtained, is the key example of these hidden motions and, through it, it seems possible to give physical reality to the Feynman’s paths. A relativistic revision of the uncertainty principle is also derived from the theory.
{"title":"Consequences of a two-time relativistic Bohmian model","authors":"Giuseppe Raguní","doi":"10.1088/1572-9494/ad48fe","DOIUrl":"https://doi.org/10.1088/1572-9494/ad48fe","url":null,"abstract":"Effects of a Bohmian type quantum-relativistic theory are explored. The model is obtained by introducing a new and independent time parameter whose relative motions are not directly observable and cause quantum uncertainties of the physical observables. Unlike the usual de Broglie–Bohm theories, the Quantum Potential does not directly affect the observable motion, but determines the one that is relative to the new time variable. It turns out that the Zitterbewegung of a free particle, of which a more general law is obtained, is the key example of these hidden motions and, through it, it seems possible to give physical reality to the Feynman’s paths. A relativistic revision of the uncertainty principle is also derived from the theory.","PeriodicalId":10641,"journal":{"name":"Communications in Theoretical Physics","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141502844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-06-19DOI: 10.1088/1572-9494/ad48fa
Zhang Xin and Xu Wei
Recently, a dual relation T0(n + 1) = THP(n) between the minimum temperature (T0(n + 1)) black hole phase and the Hawking–Page transition (THP(n)) black hole phase in two successive dimensions was introduced by Wei et al (2020 Phys. Rev. D102 10411); this was reminiscent of the anti-de Sitter/conformal field theory (AdS/CFT) correspondence, as the Hawking–Page transition temperature could be treated as the temperature of the dual physical quantity on the boundary and the latter corresponds to that in the bulk. In this paper, we discuss the Hawking–Page transition and the dual relations in AdS black holes surrounded by dark energy in general dimensions. Our findings reveal the occurrence of the Hawking–Page transition between the thermal AdS radiation and thermodynamically stable large AdS black holes, in both the spacetime surrounded by phantom dark energy and the spacetime surrounded by quintessence dark energy. We discuss the effects of the phantom dark energy and quintessence dark energy on the Hawking–Page transition temperature. For the dual relation in particular, it works well for the case of an AdS black holes surrounded by phantom dark energy. For the case of an AdS black hole surrounded by quintessence dark energy, the dual relation should be modified under an open assumption that the state parameter and the density parameter of the quintessence dark energy depend on the dimensions of the spacetime.
{"title":"Hawking–Page transition and the dual relations of anti-de Sitter black holes surrounded by dark energy in general dimensions","authors":"Zhang Xin and Xu Wei","doi":"10.1088/1572-9494/ad48fa","DOIUrl":"https://doi.org/10.1088/1572-9494/ad48fa","url":null,"abstract":"Recently, a dual relation T0(n + 1) = THP(n) between the minimum temperature (T0(n + 1)) black hole phase and the Hawking–Page transition (THP(n)) black hole phase in two successive dimensions was introduced by Wei et al (2020 Phys. Rev. D102 10411); this was reminiscent of the anti-de Sitter/conformal field theory (AdS/CFT) correspondence, as the Hawking–Page transition temperature could be treated as the temperature of the dual physical quantity on the boundary and the latter corresponds to that in the bulk. In this paper, we discuss the Hawking–Page transition and the dual relations in AdS black holes surrounded by dark energy in general dimensions. Our findings reveal the occurrence of the Hawking–Page transition between the thermal AdS radiation and thermodynamically stable large AdS black holes, in both the spacetime surrounded by phantom dark energy and the spacetime surrounded by quintessence dark energy. We discuss the effects of the phantom dark energy and quintessence dark energy on the Hawking–Page transition temperature. For the dual relation in particular, it works well for the case of an AdS black holes surrounded by phantom dark energy. For the case of an AdS black hole surrounded by quintessence dark energy, the dual relation should be modified under an open assumption that the state parameter and the density parameter of the quintessence dark energy depend on the dimensions of the spacetime.","PeriodicalId":10641,"journal":{"name":"Communications in Theoretical Physics","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141502843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-06-14DOI: 10.1088/1572-9494/ad582b
Susobhan Mandal
Scalar-tensor theories of gravity are considered to be competitors to Einstein’s theory of general relativity for the description of classical gravity, as they are used to build feasible models for cosmic inflation. These theories can be formulated both in the Jordan and Einstein frame, which are related by a Weyl transformation with a field transformation, known together as a frame transformation. These theories formulated in the above two frames are often considered to be equivalent from the point of view of classical theory. However, this is no longer true from the quantum field theoretical perspective. In the present article, we show that the Ward identities derived in the above two frames are not connected through the frame transformation. This shows that the quantum field theories formulated in these two frames are not equivalent to each other. Moreover, this inequivalence is also shown by comparing the effective actions derived in these two frames.
{"title":"Ward identities under the frame transformations in curved spacetime","authors":"Susobhan Mandal","doi":"10.1088/1572-9494/ad582b","DOIUrl":"https://doi.org/10.1088/1572-9494/ad582b","url":null,"abstract":"\u0000 Scalar-tensor theories of gravity are considered to be competitors to Einstein’s theory of general relativity for the description of classical gravity, as they are used to build feasible models for cosmic inflation. These theories can be formulated both in the Jordan and Einstein frame, which are related by a Weyl transformation with a field transformation, known together as a frame transformation. These theories formulated in the above two frames are often considered to be equivalent from the point of view of classical theory. However, this is no longer true from the quantum field theoretical perspective. In the present article, we show that the Ward identities derived in the above two frames are not connected through the frame transformation. This shows that the quantum field theories formulated in these two frames are not equivalent to each other. Moreover, this inequivalence is also shown by comparing the effective actions derived in these two frames.","PeriodicalId":10641,"journal":{"name":"Communications in Theoretical Physics","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141341078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-06-12DOI: 10.1088/1572-9494/ad5718
A. Ditta, Tiecheng Xia, Riasat Ali, Ali Ovgun
In this study, we investigate the thermodynamic characteristics of the Rindler-Schwarzschild black hole solution. Our analysis encompasses the examination of energy emission, Gibbs free energy, and thermal fluctuations. We calculate various quantities such as the Hawking temperature, geometric mass, and heat capacity to assess the local and global thermodynamic stability. The temperature of the black hole is determined using the first law of thermodynamics, while the energy emission rate is evaluated as well. By computing the Gibbs free energy, we explore the phase transition behavior exhibited by Rindler-Schwarzschild black hole, specifically examining the swallowing tails. Moreover, we derive the corrected entropy to investigate the influence of thermal fluctuations on small and large black holes. Notably, we compare the impact of correction terms on the thermodynamic system by comparing the results obtained for large black holes and small black holes.
{"title":"Thermal analysis of Rindler Schwarzschild Black Hole via corrected entropy","authors":"A. Ditta, Tiecheng Xia, Riasat Ali, Ali Ovgun","doi":"10.1088/1572-9494/ad5718","DOIUrl":"https://doi.org/10.1088/1572-9494/ad5718","url":null,"abstract":"\u0000 In this study, we investigate the thermodynamic characteristics of the Rindler-Schwarzschild black hole solution. Our analysis encompasses the examination of energy emission, Gibbs free energy, and thermal fluctuations. We calculate various quantities such as the Hawking temperature, geometric mass, and heat capacity to assess the local and global thermodynamic stability. The temperature of the black hole is determined using the first law of thermodynamics, while the energy emission rate is evaluated as well. By computing the Gibbs free energy, we explore the phase transition behavior exhibited by Rindler-Schwarzschild black hole, specifically examining the swallowing tails. Moreover, we derive the corrected entropy to investigate the influence of thermal fluctuations on small and large black holes. Notably, we compare the impact of correction terms on the thermodynamic system by comparing the results obtained for large black holes and small black holes.","PeriodicalId":10641,"journal":{"name":"Communications in Theoretical Physics","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141352487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-06-12DOI: 10.1088/1572-9494/ad5716
Haiming Chen, Rui Peng, Songlin Lyu, Bingwei Long
The role of the delta isobar degrees of freedom in nucleon-nucleon scattering is revisited. We attempt to understand why the dimensionally regularized two-pion exchanges with the explicit delta isobar is much stronger than the ones with spectral function regularization. When the cutoff value of spectral function regularization is varied, the isoscalar central component exhibits a rather large cutoff variation. This reveals a surprisingly large numerical factor of the deltaful two-pion exchange potentials. The power counting is adjusted accordingly and we discuss the results and how to improve upon this finding.
{"title":"Enhancement of deltaful two-pion exchange nuclear forces","authors":"Haiming Chen, Rui Peng, Songlin Lyu, Bingwei Long","doi":"10.1088/1572-9494/ad5716","DOIUrl":"https://doi.org/10.1088/1572-9494/ad5716","url":null,"abstract":"\u0000 The role of the delta isobar degrees of freedom in nucleon-nucleon scattering is revisited. We attempt to understand why the dimensionally regularized two-pion exchanges with the explicit delta isobar is much stronger than the ones with spectral function regularization. When the cutoff value of spectral function regularization is varied, the isoscalar central component exhibits a rather large cutoff variation. This reveals a surprisingly large numerical factor of the deltaful two-pion exchange potentials. The power counting is adjusted accordingly and we discuss the results and how to improve upon this finding.","PeriodicalId":10641,"journal":{"name":"Communications in Theoretical Physics","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141354953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-06-12DOI: 10.1088/1572-9494/ad5710
Siyuan Yu, Massimo Boninsegni
We revisit the problem of adsorption of a single 4He layer on graphene, focusing on the commen- surate (C 1/3) crystalline phase, specifically on whether it may possess a nonzero superfluid response, and on the existence of superfluid phases, either (metastable) liquid or vacancy-doped crystalline. We make use of canonical Quantum Monte Carlo simulations at zero and finite temperature, based on a realistic microscopic model of the system. Our results confirm the absence of any superfluid response in the commensurate crystal, and that no thermodynamically stable uniform phase exists at lower coverage. No evidence of a possibly long-lived, metastable superfluid phase at C 1/3 coverage is found. Altogether, the results of ground-state projection methods and finite-temperature simulations are entirely consistent.
我们重新审视了石墨烯上单个 4He 层的吸附问题，重点研究了普通石墨烯（C 1/3）结晶相，特别是它是否可能具有非零超流体响应，以及超流体相（可陨落）液态或掺杂空位的结晶相的存在。我们根据该系统的现实微观模型，在零温和有限温度下使用规范量子蒙特卡罗模拟。我们的结果证实，在相称晶体中不存在任何超流体反应，而且在较低的覆盖率下也不存在热力学稳定的均匀相。在 C 1/3 覆盖率下，没有发现可能存在长寿命、可陨落的超流体相的证据。总之，基态投影方法和有限温度模拟的结果是完全一致的。
{"title":"4He monolayer on graphene: a Quantum Monte Carlo study","authors":"Siyuan Yu, Massimo Boninsegni","doi":"10.1088/1572-9494/ad5710","DOIUrl":"https://doi.org/10.1088/1572-9494/ad5710","url":null,"abstract":"\u0000 We revisit the problem of adsorption of a single 4He layer on graphene, focusing on the commen- surate (C\u0000 1/3) crystalline phase, specifically on whether it may possess a nonzero superfluid response, and on the existence of superfluid phases, either (metastable) liquid or vacancy-doped crystalline. We make use of canonical Quantum Monte Carlo simulations at zero and finite temperature, based on a realistic microscopic model of the system. Our results confirm the absence of any superfluid response in the commensurate crystal, and that no thermodynamically stable uniform phase exists at lower coverage. No evidence of a possibly long-lived, metastable superfluid phase at C\u0000 1/3 coverage is found. Altogether, the results of ground-state projection methods and finite-temperature simulations are entirely consistent.","PeriodicalId":10641,"journal":{"name":"Communications in Theoretical Physics","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141350284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-06-12DOI: 10.1088/1572-9494/ad5719
Fazal Badshah, K. U. Tariq, Ahmet Bekir, S. M. R. Kazmi, Emad Az-Zo'bi
One of the most influential physical models for explaining the transmission of an optical soliton in optical fibre theory is the nonlinear Schrödinger equation (NLSE). Due to its many potential uses in communications and ultrafast signal routing systems, chiral soliton propagation in nuclear physics is a subject that holds a great deal of interest. This work employs a number of in-depth analytical techniques to deal with the (1+1)-dimensional chiral NLSE that describes the soliton behaviour in transmission of data and has application in the fields of nuclear physics, optics, ionised science, particle physics, and in other applied disciplines mathematical sciences. With the help of applied strategies, we are able to develop different types of solutions that demonstrate behaviour of singular soliton solution, periodic soliton solution, v-shaped soliton, chiral soliton and bell shaped soliton solutions behaviour. Additionally, we discuss the stability analysis for the established solution of the governing model to validate the scientific computations. For the best understanding of solutions behaviour the 3D, contour, and 2D graphics are included. The strategies used are reliable, simple, and efficient. The obtained solution has applications in various computational physics phenomena as well as in other real-world situations and a wide range of academic disciplines.
{"title":"Stability analysis and solitons solutions of the (1+1)-dimensional nonlinear chiral Schrödinger equation in nuclear physics","authors":"Fazal Badshah, K. U. Tariq, Ahmet Bekir, S. M. R. Kazmi, Emad Az-Zo'bi","doi":"10.1088/1572-9494/ad5719","DOIUrl":"https://doi.org/10.1088/1572-9494/ad5719","url":null,"abstract":"\u0000 One of the most influential physical models for explaining the transmission of an optical soliton in optical fibre theory is the nonlinear Schrödinger equation (NLSE). Due to its many potential uses in communications and ultrafast signal routing systems, chiral soliton propagation in nuclear physics is a subject that holds a great deal of interest. This work employs a number of in-depth analytical techniques to deal with the (1+1)-dimensional chiral NLSE that describes the soliton behaviour in transmission of data and has application in the fields of nuclear physics, optics, ionised science, particle physics, and in other applied disciplines mathematical sciences. With the help of applied strategies, we are able to develop different types of solutions that demonstrate behaviour of singular soliton solution, periodic soliton solution, v-shaped soliton, chiral soliton and bell shaped soliton solutions behaviour. Additionally, we discuss the stability analysis for the established solution of the governing model to validate the scientific computations. For the best understanding of solutions behaviour the 3D, contour, and 2D graphics are included. The strategies used are reliable, simple, and efficient. The obtained solution has applications in various computational physics phenomena as well as in other real-world situations and a wide range of academic disciplines.","PeriodicalId":10641,"journal":{"name":"Communications in Theoretical Physics","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141351535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-06-11DOI: 10.1088/1572-9494/ad565f
Adeel Mansha, Tianjun Li, Mudassar Sabir
We revisit the construction of the N=1 supersymmetric trinification models with gauge group $U(3)_C times U(3)_L times U(3)_R$ in Type IIA string theory on $T^6/(Z_2times Z_2)$ orientifold with intersecting D6-branes. The non-trivial K-theory conditions and tadpole cancellation conditions severely restrict the number of allowed models even for the case of rectangular two-tori. Using a supervised search algorithm, we find a few four-family models where the highest wrapping number is 2. For these models, we present the complete particle spectra and the gauge coupling relations at the string-scale.
我们重新审视了在具有相交D6-ranes的$T^6/(Z_2/times Z_2)$定向体上的IIA型弦理论中构建具有轨距组$U(3)_C times U(3)_L times U(3)_R$的N=1超对称三化模型。即使在矩形双蝶形的情况下，非琐K理论条件和蝌蚪取消条件也严重限制了允许模型的数量。对于这些模型，我们给出了完整的粒子谱和弦尺度上的量规耦合关系。
{"title":"Revisiting the N=1 supersymmetric trinification models from intersecting D6-branes","authors":"Adeel Mansha, Tianjun Li, Mudassar Sabir","doi":"10.1088/1572-9494/ad565f","DOIUrl":"https://doi.org/10.1088/1572-9494/ad565f","url":null,"abstract":"\u0000 We revisit the construction of the N=1 supersymmetric trinification models with gauge group $U(3)_C times U(3)_L times U(3)_R$ in Type IIA string theory on $T^6/(Z_2times Z_2)$ orientifold with intersecting D6-branes. The non-trivial K-theory conditions and tadpole cancellation conditions severely restrict the number of allowed models even for the case of rectangular two-tori. Using a supervised search algorithm, we find a few four-family models where the highest wrapping number is 2. For these models, we present the complete particle spectra and the gauge coupling relations at the string-scale.","PeriodicalId":10641,"journal":{"name":"Communications in Theoretical Physics","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141360678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-06-11DOI: 10.1088/1572-9494/ad4a38
Rui-Di Wang, Shu-Min Wu and Xiao-Li Huang
It is well known that nonlocal coherence reflects nonclassical correlations better than quantum entanglement. Here, we analyze nonlocal coherence harvesting from the quantum vacuum to particle detectors adiabatically interacting with a quantum scalar field in Minkowski spacetime. We find that the harvesting-achievable separation range of nonlocal coherence is larger than that of quantum entanglement. As the energy gap grows sufficiently large, the detectors harvest less quantum coherence, while the detectors could extract more quantum entanglement from the vacuum state. Compared with the linear configuration and the scalene configuration, we should choose the model of equilateral triangle configuration to harvest tripartite coherence from the vacuum. Finally, we find a monogamous relationship, which means that tripartite l1-norm of coherence is essentially bipartite types.
{"title":"Nonlocal coherence harvesting from quantum vacuum","authors":"Rui-Di Wang, Shu-Min Wu and Xiao-Li Huang","doi":"10.1088/1572-9494/ad4a38","DOIUrl":"https://doi.org/10.1088/1572-9494/ad4a38","url":null,"abstract":"It is well known that nonlocal coherence reflects nonclassical correlations better than quantum entanglement. Here, we analyze nonlocal coherence harvesting from the quantum vacuum to particle detectors adiabatically interacting with a quantum scalar field in Minkowski spacetime. We find that the harvesting-achievable separation range of nonlocal coherence is larger than that of quantum entanglement. As the energy gap grows sufficiently large, the detectors harvest less quantum coherence, while the detectors could extract more quantum entanglement from the vacuum state. Compared with the linear configuration and the scalene configuration, we should choose the model of equilateral triangle configuration to harvest tripartite coherence from the vacuum. Finally, we find a monogamous relationship, which means that tripartite l1-norm of coherence is essentially bipartite types.","PeriodicalId":10641,"journal":{"name":"Communications in Theoretical Physics","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141532536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-06-11DOI: 10.1088/1572-9494/ad3f94
Dongni Chen, Jiahui Li, Stefano Chesi and Ying-Dan Wang
We consider generating maximally entangled states (Bell states) between two qubits coupled to a common bosonic mode, based on f-STIRAP. Utilizing the systematic approach developed by Wang et al (2017 New J. Phys.19 093016), we quantify the effects of non-adiabatic leakage and system dissipation on the entanglement generation, and optimize the entanglement by balancing non-adiabatic leakage and system dissipation. We find the analytical expressions of the optimal coupling profile, the operation time, and the maximal entanglement. Our findings have broad applications in quantum state engineering, especially in solid-state devices where dissipative effects cannot be neglected.
我们考虑基于 f-STIRAP 在耦合到共同玻色子模式的两个量子比特之间产生最大纠缠态（贝尔态）。利用 Wang 等人（2017 New J. Phys.19 093016）开发的系统方法，我们量化了非绝热泄漏和系统耗散对纠缠生成的影响，并通过平衡非绝热泄漏和系统耗散优化了纠缠。我们找到了最佳耦合曲线、运行时间和最大纠缠的解析表达式。我们的发现在量子态工程中有着广泛的应用，尤其是在耗散效应不可忽视的固态设备中。
{"title":"Optimized generation of entanglement based on the f-STIRAP technique","authors":"Dongni Chen, Jiahui Li, Stefano Chesi and Ying-Dan Wang","doi":"10.1088/1572-9494/ad3f94","DOIUrl":"https://doi.org/10.1088/1572-9494/ad3f94","url":null,"abstract":"We consider generating maximally entangled states (Bell states) between two qubits coupled to a common bosonic mode, based on f-STIRAP. Utilizing the systematic approach developed by Wang et al (2017 New J. Phys.19 093016), we quantify the effects of non-adiabatic leakage and system dissipation on the entanglement generation, and optimize the entanglement by balancing non-adiabatic leakage and system dissipation. We find the analytical expressions of the optimal coupling profile, the operation time, and the maximal entanglement. Our findings have broad applications in quantum state engineering, especially in solid-state devices where dissipative effects cannot be neglected.","PeriodicalId":10641,"journal":{"name":"Communications in Theoretical Physics","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141502845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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