Pub Date : 2024-07-31DOI: 10.1088/1674-1137/ad2a61
Ya Guo, 亚 郭, Hiroaki Nakajima, Wenbin Lin and 文斌 林
We study wave equations with various spins on the background of a general spherically symmetric spacetime. We obtain the unified expression of the Teukolsky-like master equations and the corresponding radial equations with the general spins. We also discuss the gauge dependence in the gravitational-wave equations, which have appeared in previous studies.
{"title":"Teukolsky-like equations with various spins in spherically symmetric spacetime*","authors":"Ya Guo, 亚 郭, Hiroaki Nakajima, Wenbin Lin and 文斌 林","doi":"10.1088/1674-1137/ad2a61","DOIUrl":"https://doi.org/10.1088/1674-1137/ad2a61","url":null,"abstract":"We study wave equations with various spins on the background of a general spherically symmetric spacetime. We obtain the unified expression of the Teukolsky-like master equations and the corresponding radial equations with the general spins. We also discuss the gauge dependence in the gravitational-wave equations, which have appeared in previous studies.","PeriodicalId":10250,"journal":{"name":"中国物理C","volume":"161 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141504095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 : 2024-07-31DOI: 10.1088/1674-1137/ad47a8
Xiao-Rong Ma, 小荣 马, Shuai Sun, 帅 孙, Rong An, 荣 安, Li-Gang Cao and 李刚 曹
A correlation between the charge radii difference of mirror partner nuclei and the slope parameter L of symmetry energy has been built to ascertain the equation of state of isospin asymmetric nuclear matter. In this work, the influences of pairing correlations and isoscalar compression modulus on the are systematically investigated based on the Skyrme energy density functional theory. The calculated results suggest that the linear correlation between and L is decreased by the surface pairing correlations. The slope parameter deduced from the difference of charge radii of mirror-pair nuclei 32Ar-32Si, 36Ca-36S, 38Ca-38Ar, and 54Ni-54Fe falls into the range of − MeV, that is, the rather soft equation of state of asymmetric nuclear matter. Besides, the range of the slope parameter can also be influenced by the effective forces classified by various isoscalar incompressibility coefficients.
我们建立了镜像伙伴核的电荷半径差与对称能斜率参数 L 之间的相关性，从而确定了等空间不对称核物质的状态方程。在这项工作中，基于 Skyrme 能量密度泛函理论，系统地研究了配对相关性和等速压缩模量对等速压缩模量的影响。计算结果表明，表面配对相关性降低了和 L 之间的线性相关性。从镜像对核 32Ar-32Si、36Ca-36S、38Ca-38Ar 和 54Ni-54Fe 的电荷半径差推导出的斜率参数落在 - MeV 的范围内，即相当软的非对称核物质状态方程。此外，斜率参数的范围还可能受到按不同等压不可压缩系数分类的有效作用力的影响。
{"title":"Correlation between the charge radii difference in mirror partner nuclei and thesymmetry energy slope*","authors":"Xiao-Rong Ma, 小荣 马, Shuai Sun, 帅 孙, Rong An, 荣 安, Li-Gang Cao and 李刚 曹","doi":"10.1088/1674-1137/ad47a8","DOIUrl":"https://doi.org/10.1088/1674-1137/ad47a8","url":null,"abstract":"A correlation between the charge radii difference of mirror partner nuclei and the slope parameter L of symmetry energy has been built to ascertain the equation of state of isospin asymmetric nuclear matter. In this work, the influences of pairing correlations and isoscalar compression modulus on the are systematically investigated based on the Skyrme energy density functional theory. The calculated results suggest that the linear correlation between and L is decreased by the surface pairing correlations. The slope parameter deduced from the difference of charge radii of mirror-pair nuclei 32Ar-32Si, 36Ca-36S, 38Ca-38Ar, and 54Ni-54Fe falls into the range of − MeV, that is, the rather soft equation of state of asymmetric nuclear matter. Besides, the range of the slope parameter can also be influenced by the effective forces classified by various isoscalar incompressibility coefficients.","PeriodicalId":10250,"journal":{"name":"中国物理C","volume":"16 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141519023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 : 2024-07-31DOI: 10.1088/1674-1137/ad446a
T. M. Aliev, S. Bilmis and M. Savci
We estimate the coupling constants and decay widths of the partners of the hyperon, as discovered by the BELLE Collaboration, using the distribution amplitudes of the octet baryons within the light cone sum rules method. Our study includes a comparison of the obtained results for the relevant decay widths with those derived within the framework of the flavor analysis. We observe a good agreement between the predictions of both approaches. Moreover, our result on the decay width of is compatible with the existing experimental result within the uncertainties of the model predictions. These results can provide helpful insights for determining the nature of the partners of the baryon.
我们使用光锥和规则方法中的八重子分布振幅来估算 BELLE 协作发现的超子伙伴的耦合常数和衰变宽度。我们的研究包括将获得的相关衰变宽度结果与在味道分析框架内得出的结果进行比较。我们发现这两种方法的预测结果非常一致。此外，在模型预测的不确定性范围内，我们关于衰变宽度的结果与现有的实验结果是一致的。这些结果可以为确定重子伙伴的性质提供有益的启示。
{"title":"Analysis of strong decays of SU(3) partners of Ω(2012) baryon","authors":"T. M. Aliev, S. Bilmis and M. Savci","doi":"10.1088/1674-1137/ad446a","DOIUrl":"https://doi.org/10.1088/1674-1137/ad446a","url":null,"abstract":"We estimate the coupling constants and decay widths of the partners of the hyperon, as discovered by the BELLE Collaboration, using the distribution amplitudes of the octet baryons within the light cone sum rules method. Our study includes a comparison of the obtained results for the relevant decay widths with those derived within the framework of the flavor analysis. We observe a good agreement between the predictions of both approaches. Moreover, our result on the decay width of is compatible with the existing experimental result within the uncertainties of the model predictions. These results can provide helpful insights for determining the nature of the partners of the baryon.","PeriodicalId":10250,"journal":{"name":"中国物理C","volume":"21 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141532642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 : 2024-07-31DOI: 10.1088/1674-1137/ad39cf
Xuan Liu, 旋 刘, Jia-Jie Jiang, 佳杰 江, Xun Chen, 勋 陈, Mitsutoshi Fujita and Akira Watanabe
Gauge/gravity duality is used to study the properties of the doubly heavy baryon at finite rapidity and temperature in heavy-ion collisions. We investigate the impact of rapidity on string breaking and screening of and compare these effects with the results for in detail. Computations reveal that the string-breaking distances of and are close in the confined state, and the effects of rapidity and temperature on the string breaking are not significant. An interesting result shows that cannot be determined at sufficiently high temperatures and rapidities. However, can exist under any conditions as long as the separation distance is sufficiently small. Furthermore, the screening distances of and are compared at finite rapidity and temperature. Based on the above analysis, we infer that is more stable than at finite rapidity and temperature.
{"title":"Moving doubly heavy baryon in a strongly coupled plasma via holography*","authors":"Xuan Liu, 旋 刘, Jia-Jie Jiang, 佳杰 江, Xun Chen, 勋 陈, Mitsutoshi Fujita and Akira Watanabe","doi":"10.1088/1674-1137/ad39cf","DOIUrl":"https://doi.org/10.1088/1674-1137/ad39cf","url":null,"abstract":"Gauge/gravity duality is used to study the properties of the doubly heavy baryon at finite rapidity and temperature in heavy-ion collisions. We investigate the impact of rapidity on string breaking and screening of and compare these effects with the results for in detail. Computations reveal that the string-breaking distances of and are close in the confined state, and the effects of rapidity and temperature on the string breaking are not significant. An interesting result shows that cannot be determined at sufficiently high temperatures and rapidities. However, can exist under any conditions as long as the separation distance is sufficiently small. Furthermore, the screening distances of and are compared at finite rapidity and temperature. Based on the above analysis, we infer that is more stable than at finite rapidity and temperature.","PeriodicalId":10250,"journal":{"name":"中国物理C","volume":"133 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141519021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 : 2024-07-01DOI: 10.1088/1674-1137/ad3b7e
Rui-Hong Yue, Kai-Qiang Qian, Bo Liu, De-Cheng Zou
Considering the nonminimal coupling of the dilaton field to the massive graviton field in Maxwell-dilaton-massive gravity, we obtain a class of analytical solutions of charged black holes, which are neither asymptotically flat nor (A)dS. The calculated thermodynamic quantities, such as mass, temperature, and entropy, verify the validity of the first law of black hole thermodynamics. Moreover, we further investigate the critical behaviors of these black holes in the grand canonical and canonical ensembles and find a novel critical phenomenon never before observed, known as the "reverse" reentrant phase transition with a tricritical point. It implies that the system undergoes a novel "SBH-LBH-SBH" phase transition process and is the reverse of the "LBH-SBH-LBH" process observed in reentrant phase transitions.
{"title":"Thermodynamics of charged black holes in Maxwell-dilaton-massive gravity* * Supported by the National Key Research and Development Program of China (2020YFC2201400). D. C. Zou is supported by the National Natural Science Foundation of China (12365009), and the Natural Science Foundation of Jiangxi Province, China (20232BAB201039)","authors":"Rui-Hong Yue, Kai-Qiang Qian, Bo Liu, De-Cheng Zou","doi":"10.1088/1674-1137/ad3b7e","DOIUrl":"https://doi.org/10.1088/1674-1137/ad3b7e","url":null,"abstract":"Considering the nonminimal coupling of the dilaton field to the massive graviton field in Maxwell-dilaton-massive gravity, we obtain a class of analytical solutions of charged black holes, which are neither asymptotically flat nor (A)dS. The calculated thermodynamic quantities, such as mass, temperature, and entropy, verify the validity of the first law of black hole thermodynamics. Moreover, we further investigate the critical behaviors of these black holes in the grand canonical and canonical ensembles and find a novel critical phenomenon never before observed, known as the \"reverse\" reentrant phase transition with a tricritical point. It implies that the system undergoes a novel \"SBH-LBH-SBH\" phase transition process and is the reverse of the \"LBH-SBH-LBH\" process observed in reentrant phase transitions.","PeriodicalId":10250,"journal":{"name":"中国物理C","volume":"14 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141552637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 : 2024-06-30DOI: 10.1088/1674-1137/ad39cc
Wei Jiang, 威 蒋, Yan-jun Chen and 晏军 陈
We explore the properties of 4110 nuclides from to with the Sky3D code and the composition of the outer crust in magnetars under extreme magnetic fields. The effects of the variation in nuclear masses due to magnetic fields on the outer crust are comprehensively studied. The neutron-drip transition pressure, equation of state, and neutron fraction in the outer crust are also discussed.
{"title":"Role of magnetic fields on the outer crust in a magnetar*","authors":"Wei Jiang, 威 蒋, Yan-jun Chen and 晏军 陈","doi":"10.1088/1674-1137/ad39cc","DOIUrl":"https://doi.org/10.1088/1674-1137/ad39cc","url":null,"abstract":"We explore the properties of 4110 nuclides from to with the Sky3D code and the composition of the outer crust in magnetars under extreme magnetic fields. The effects of the variation in nuclear masses due to magnetic fields on the outer crust are comprehensively studied. The neutron-drip transition pressure, equation of state, and neutron fraction in the outer crust are also discussed.","PeriodicalId":10250,"journal":{"name":"中国物理C","volume":"49 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141193903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}
We investigate the dynamic and thermodynamic laws governing rotating regular black holes. By analyzing dynamic properties, i.e., the interaction between scalar particles and rotating regular black holes, we establish the criteria that determine whether such black holes satisfy the laws of thermodynamics. In addition, we provide the general form of conserved quantities related to rotating regular black holes, including the relevant flows associated with neutral scalar particles. Meanwhile, we reexamine the relationship between the third law of thermodynamics and weak cosmic censorship conjecture for rotating regular black holes. Based on the abovementioned criteria, we discuss the laws of thermodynamics for three models of rotating regular black holes: Rotating Hayward black holes, Kerr black-bounce solutions, and loop quantum gravity black holes. Our findings indicate that none of the three models satisfies the first law of thermodynamics. In particular, the first and third models fail to comply with the three laws of thermodynamics, whereas the second model satisfies only the second and third laws of thermodynamics. Finally, we attempt to rescue the laws of thermodynamics by modifying entropy or extending the phase space. However, the two scenarios cannot ensure the three laws of thermodynamics in the three models, which reveals an unusual property of rotating regular black holes.
{"title":"Preliminary analyses of the dynamics and thermodynamics of rotating regular black holes*","authors":"Hao Yang, 昊 杨, Chang-Jiang Yu, 长江 余, Yan-Gang Miao and 炎刚 缪","doi":"10.1088/1674-1137/ad34c1","DOIUrl":"https://doi.org/10.1088/1674-1137/ad34c1","url":null,"abstract":"We investigate the dynamic and thermodynamic laws governing rotating regular black holes. By analyzing dynamic properties, i.e., the interaction between scalar particles and rotating regular black holes, we establish the criteria that determine whether such black holes satisfy the laws of thermodynamics. In addition, we provide the general form of conserved quantities related to rotating regular black holes, including the relevant flows associated with neutral scalar particles. Meanwhile, we reexamine the relationship between the third law of thermodynamics and weak cosmic censorship conjecture for rotating regular black holes. Based on the abovementioned criteria, we discuss the laws of thermodynamics for three models of rotating regular black holes: Rotating Hayward black holes, Kerr black-bounce solutions, and loop quantum gravity black holes. Our findings indicate that none of the three models satisfies the first law of thermodynamics. In particular, the first and third models fail to comply with the three laws of thermodynamics, whereas the second model satisfies only the second and third laws of thermodynamics. Finally, we attempt to rescue the laws of thermodynamics by modifying entropy or extending the phase space. However, the two scenarios cannot ensure the three laws of thermodynamics in the three models, which reveals an unusual property of rotating regular black holes.","PeriodicalId":10250,"journal":{"name":"中国物理C","volume":"316 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141198042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}
We present that by predicting the spectrum in discrete space from the phase shift in continuous space, the neural network can remarkably reproduce the numerical Lüscher's formula to a high precision. The model-independent property of the Lüscher's formula is naturally realized by the generalizability of the neural network. This exhibits the great potential of the neural network to extract model-independent relation between model-dependent quantities, and this data-driven approach could greatly facilitate the discovery of the physical principles underneath the intricate data.
{"title":"Rediscovery of numerical Lüscher's formula from the neural network*","authors":"Yu Lu, 宇 陆, Yi-Jia Wang, 一佳 王, Ying Chen, 莹 陈, Jia-Jun Wu and 佳俊 吴","doi":"10.1088/1674-1137/ad3b9c","DOIUrl":"https://doi.org/10.1088/1674-1137/ad3b9c","url":null,"abstract":"We present that by predicting the spectrum in discrete space from the phase shift in continuous space, the neural network can remarkably reproduce the numerical Lüscher's formula to a high precision. The model-independent property of the Lüscher's formula is naturally realized by the generalizability of the neural network. This exhibits the great potential of the neural network to extract model-independent relation between model-dependent quantities, and this data-driven approach could greatly facilitate the discovery of the physical principles underneath the intricate data.","PeriodicalId":10250,"journal":{"name":"中国物理C","volume":"42 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141165653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 : 2024-06-30DOI: 10.1088/1674-1137/ad4268
Kun Wang, 坤 王, Jingya Zhu and 经亚 朱
Motivated by experimental hints and theoretical frameworks indicating the existence of an extended Higgs sector, we explore the feasibility of detecting a 95 GeV light Higgs boson decaying into a diphoton within the minimal dilaton model at the 14 TeV LHC. Initially, we identify the correlations between the production cross section, decay branching ratios, and model parameters, e.g., the scalar mixing angle . Subsequently, we utilize Monte Carlo simulations to generate the signal of the light Higgs boson via the process, along with the corresponding backgrounds. To effectively separate the signal from the dominant backgrounds , we employ a meticulous cut-based selection process. Ultimately, we find that with an integrated luminosity of , the regions of can be covered over the level.
实验提示和理论框架表明存在一个扩展的希格斯扇区，受此激励，我们探索了在 14 TeV 大型强子对撞机上探测 95 GeV 轻希格斯玻色子在最小稀拉顿模型中衰变为双光子的可行性。首先，我们确定了产生截面、衰变分支比和模型参数（如标量混合角）之间的相关性。随后，我们利用蒙特卡洛模拟，通过该过程产生轻希格斯玻色子信号以及相应的背景。为了有效地将信号与主要背景分离开来，我们采用了一种细致的基于剪切的选择过程。最终，我们发现，在综合光度为 ，的区域可以覆盖整个水平。
{"title":"95 GeV light Higgs in the top-pair-associated diphoton channel at the LHC in the minimal dilaton model*","authors":"Kun Wang, 坤 王, Jingya Zhu and 经亚 朱","doi":"10.1088/1674-1137/ad4268","DOIUrl":"https://doi.org/10.1088/1674-1137/ad4268","url":null,"abstract":"Motivated by experimental hints and theoretical frameworks indicating the existence of an extended Higgs sector, we explore the feasibility of detecting a 95 GeV light Higgs boson decaying into a diphoton within the minimal dilaton model at the 14 TeV LHC. Initially, we identify the correlations between the production cross section, decay branching ratios, and model parameters, e.g., the scalar mixing angle . Subsequently, we utilize Monte Carlo simulations to generate the signal of the light Higgs boson via the process, along with the corresponding backgrounds. To effectively separate the signal from the dominant backgrounds , we employ a meticulous cut-based selection process. Ultimately, we find that with an integrated luminosity of , the regions of can be covered over the level.","PeriodicalId":10250,"journal":{"name":"中国物理C","volume":"40 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141519072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}
Here, we study the quantum coherence of N-partite Greenberger-Horne-Zeilinger (GHZ) and W states in the multiverse consisting of N causally disconnected de Sitter spaces. Interestingly, N-partite coherence increases monotonically with curvature, whereas the curvature effect destroys quantum entanglement and discord, indicating that the curvature effect is beneficial to quantum coherence and harmful to quantum correlations in the multiverse. We find that with an increase in n expanding de Sitter spaces, the N-partite coherence of the GHZ state increases monotonically for any curvature, whereas the quantum coherence of the W state decreases or increases monotonically depending on the curvature. We find a distribution relationship, which indicates that the correlated coherence of the N-partite W state is equal to the sum of all bipartite correlated coherence in the multiverse. Multipartite coherence exhibits unique properties in the multiverse, suggesting that it may provide some evidence for the existence of the multiverse.
在这里，我们研究了由N个因果断开的德西特空间组成的多重宇宙中N个部分格林伯格-霍恩-蔡林格（GHZ）态和W态的量子相干性。有趣的是，N部分相干性随曲率的增加而单调增加，而曲率效应则会破坏量子纠缠和不和谐，这表明曲率效应对多元宇宙中的量子相干性有利而对量子相关性有害。我们发现，随着扩展德西特空间 n 的增加，在任何曲率下，GHZ 状态的 N 部分相干性都会单调增加，而 W 状态的量子相干性则会根据曲率的不同而单调减少或增加。我们发现了一种分布关系，它表明 N 方 W 态的相关相干性等于多重宇宙中所有双方相关相干性的总和。多方相干性在多元宇宙中表现出独特的性质，这表明它可能为多元宇宙的存在提供了一些证据。
{"title":"Curvature-enhanced multipartite coherence in the multiverse*","authors":"Shu-Min Wu, 树民 吴, Chun-Xu Wang, 春旭 王, Rui-Di Wang, 锐迪 王, Jin-Xuan Li, 金璇 李, Xiao-Li Huang, 晓理 黄, Hao-Sheng Zeng and 浩生 曾","doi":"10.1088/1674-1137/ad32bf","DOIUrl":"https://doi.org/10.1088/1674-1137/ad32bf","url":null,"abstract":"Here, we study the quantum coherence of N-partite Greenberger-Horne-Zeilinger (GHZ) and W states in the multiverse consisting of N causally disconnected de Sitter spaces. Interestingly, N-partite coherence increases monotonically with curvature, whereas the curvature effect destroys quantum entanglement and discord, indicating that the curvature effect is beneficial to quantum coherence and harmful to quantum correlations in the multiverse. We find that with an increase in n expanding de Sitter spaces, the N-partite coherence of the GHZ state increases monotonically for any curvature, whereas the quantum coherence of the W state decreases or increases monotonically depending on the curvature. We find a distribution relationship, which indicates that the correlated coherence of the N-partite W state is equal to the sum of all bipartite correlated coherence in the multiverse. Multipartite coherence exhibits unique properties in the multiverse, suggesting that it may provide some evidence for the existence of the multiverse.","PeriodicalId":10250,"journal":{"name":"中国物理C","volume":"77 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141504096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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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