Pub Date : 2020-03-03DOI: 10.1093/acrefore/9780190871994.013.48
S. Sachdev
A colloquium style review of the connections between the Sachdev-Ye-Kitaev model and strange metals without quasiparticles, and between the SYK model and the quantum properties of black holes. Along with other insights, this connection has led to an understanding of the universal form of the low energy density of states of charged black holes in asymptotically 3+1 dimensional Minkowski space.
{"title":"Strange Metals and Black Holes","authors":"S. Sachdev","doi":"10.1093/acrefore/9780190871994.013.48","DOIUrl":"https://doi.org/10.1093/acrefore/9780190871994.013.48","url":null,"abstract":"A colloquium style review of the connections between the Sachdev-Ye-Kitaev model and strange metals without quasiparticles, and between the SYK model and the quantum properties of black holes. Along with other insights, this connection has led to an understanding of the universal form of the low energy density of states of charged black holes in asymptotically 3+1 dimensional Minkowski space.","PeriodicalId":9375,"journal":{"name":"Bulletin of the American Physical Society","volume":"22 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141225228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-03-03DOI: 10.1021/acs.nanolett.8b02806.s001
Mengmeng Yang, Qian Li, Cheng Gong, R. Chopdekar, A. N’Diaye, John A. Turner, Gong Chen, A. Scholl, P. Shafer, E. Arenholz, Andreas K. Schmid, Sheng Wang, Kai Liu, N. Gao, Alemayehu S. Admasu, Sang-Wook Cheong, Chanyong Hwang, Jia Li, Feng Wang, Xiang Zhang, Z. Qiu
{"title":"Patterning-induced ferromagnetism of Fe 3 GeTe 2 van der Waals materials beyond room temperature","authors":"Mengmeng Yang, Qian Li, Cheng Gong, R. Chopdekar, A. N’Diaye, John A. Turner, Gong Chen, A. Scholl, P. Shafer, E. Arenholz, Andreas K. Schmid, Sheng Wang, Kai Liu, N. Gao, Alemayehu S. Admasu, Sang-Wook Cheong, Chanyong Hwang, Jia Li, Feng Wang, Xiang Zhang, Z. Qiu","doi":"10.1021/acs.nanolett.8b02806.s001","DOIUrl":"https://doi.org/10.1021/acs.nanolett.8b02806.s001","url":null,"abstract":"","PeriodicalId":9375,"journal":{"name":"Bulletin of the American Physical Society","volume":"119 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141225347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-03-03DOI: 10.1021/acsami.8b14037.s001
Zhou Jiang, Peng Wang, Xue Jiang, Jijun Zhao
{"title":"Screening and Design of Novel 2D Ferromagnetic Materials with High Curie Temperature above Room Temperature","authors":"Zhou Jiang, Peng Wang, Xue Jiang, Jijun Zhao","doi":"10.1021/acsami.8b14037.s001","DOIUrl":"https://doi.org/10.1021/acsami.8b14037.s001","url":null,"abstract":"","PeriodicalId":9375,"journal":{"name":"Bulletin of the American Physical Society","volume":"142 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141225242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-03-03DOI: 10.21633/ISSN.2380.5064/S.2020.03.02.31
Benjamin Overlie, Josefa Guerrero Millan
Controlled generation of micron and sub-micron sized drops continues to be of strong interest for the scientific community due to the variety of applications in many different fields. Emulsion drops can be generated by flowing two immiscible liquids inside a glassbased microfluidic device. Their minimum size will be of the order of the tip size. To create smaller drops, an external electric field can be used, similarly to what it is done in the classical electrospray. In electrospray, a liquid is issued into the air from an electrified needle. When the flow rate of the liquid is controlled, there is a minimum flow rate below which a cone-jet cannot be formed regardless of the applied voltage. This minimum flow rate provides the minimum drop size that can be generated, usually one or two orders of magnitude smaller than the tip size. In this presentation, we explore this lower limit in electro-coflow using pressure control instead, which generates different results from using electrospray, and with a more complex behavior. The use of pressure control, and the presence of an outer moving fluid, enrich the dynamics in the minimum flow rate limit. Received: 01/31/2020 Accepted: 02/17/2020 Correspondence: Benjamin Overlie, Augusta University, 1120 15 St. Augusta, GA 30912, boverlie@augusta.edu
由于在许多不同领域的各种应用，控制微米和亚微米尺寸滴的产生仍然是科学界的强烈兴趣。通过在玻璃基微流体装置内流动两种不混溶的液体，可以产生乳化液滴。它们的最小尺寸将是尖端尺寸的顺序。为了产生更小的液滴，可以使用外部电场，类似于在经典的电喷雾中所做的。在电喷雾中，液体从带电的针中喷射到空气中。当液体的流量受到控制时，存在一个最小流量，低于该流量，无论施加的电压如何，锥状射流都不能形成。这个最小流量提供了可以产生的最小液滴尺寸，通常比尖端尺寸小一到两个数量级。在本报告中，我们使用压力控制来探索电共流的下限，这与使用电喷雾产生不同的结果，并且具有更复杂的行为。利用压力控制和外部运动流体的存在，丰富了最小流量限制下的动力学。收稿日期:2020年1月31日收稿日期:2020年2月17日通讯:Benjamin Overlie, Augusta University, 1120 15 St. Augusta, GA 30912, boverlie@augusta.edu
{"title":"Minimum Flow Rate in Electro-Coflow","authors":"Benjamin Overlie, Josefa Guerrero Millan","doi":"10.21633/ISSN.2380.5064/S.2020.03.02.31","DOIUrl":"https://doi.org/10.21633/ISSN.2380.5064/S.2020.03.02.31","url":null,"abstract":"Controlled generation of micron and sub-micron sized drops continues to be of strong interest for the scientific community due to the variety of applications in many different fields. Emulsion drops can be generated by flowing two immiscible liquids inside a glassbased microfluidic device. Their minimum size will be of the order of the tip size. To create smaller drops, an external electric field can be used, similarly to what it is done in the classical electrospray. In electrospray, a liquid is issued into the air from an electrified needle. When the flow rate of the liquid is controlled, there is a minimum flow rate below which a cone-jet cannot be formed regardless of the applied voltage. This minimum flow rate provides the minimum drop size that can be generated, usually one or two orders of magnitude smaller than the tip size. In this presentation, we explore this lower limit in electro-coflow using pressure control instead, which generates different results from using electrospray, and with a more complex behavior. The use of pressure control, and the presence of an outer moving fluid, enrich the dynamics in the minimum flow rate limit. Received: 01/31/2020 Accepted: 02/17/2020 Correspondence: Benjamin Overlie, Augusta University, 1120 15 St. Augusta, GA 30912, boverlie@augusta.edu","PeriodicalId":9375,"journal":{"name":"Bulletin of the American Physical Society","volume":"56 1","pages":"31-31"},"PeriodicalIF":0.0,"publicationDate":"2020-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86883424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-03-03DOI: 10.26226/morressier.5f5f8e69aa777f8ba5bd6144
M. Rosa, M. Ruzzene
{"title":"Dynamics and topology of non-Hermitian elastic lattices with non-local feedback interactions","authors":"M. Rosa, M. Ruzzene","doi":"10.26226/morressier.5f5f8e69aa777f8ba5bd6144","DOIUrl":"https://doi.org/10.26226/morressier.5f5f8e69aa777f8ba5bd6144","url":null,"abstract":"","PeriodicalId":9375,"journal":{"name":"Bulletin of the American Physical Society","volume":"49 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74925364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-03-03DOI: 10.26226/morressier.5f5f8e69aa777f8ba5bd6040
Yonatan Kurniawan, Cody Petrie, Kinamo J. Williams, M. Transtrum
{"title":"Uncertainty quantification of classical interatomic potentials in OpenKIM database","authors":"Yonatan Kurniawan, Cody Petrie, Kinamo J. Williams, M. Transtrum","doi":"10.26226/morressier.5f5f8e69aa777f8ba5bd6040","DOIUrl":"https://doi.org/10.26226/morressier.5f5f8e69aa777f8ba5bd6040","url":null,"abstract":"","PeriodicalId":9375,"journal":{"name":"Bulletin of the American Physical Society","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78125890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-03-03DOI: 10.1103/PHYSREVB.102.195418
Florian Ginzel, A. Mills, J. Petta, G. Burkard
The transport of quantum information between different nodes of a quantum device is among the challenging functionalities of a quantum processor. In the context of spin qubits, this requirement can be met by coherent electron spin shuttling between semiconductor quantum dots. Here we theoretically study a minimal version of spin shuttling between two quantum dots. To this end, we analyze the dynamics of an electron during a detuning sweep in a silicon double quantum dot (DQD) occupied by one electron. Possibilities and limitations of spin transport are investigated. Spin-orbit interaction and the Zeeman effect in an inhomogeneous magnetic field play an important role for spin shuttling and are included in our model. Interactions that couple the position, spin, and valley degrees of freedom open a number of avoided crossings in the spectrum allowing for diabatic transitions and interfering paths. The outcomes of single and repeated spin shuttling protocols are explored by means of numerical simulations and an approximate analytical model based on the solution of the Landau-Zener problem. We find that a spin infidelity as low as $1ensuremath{-}{F}_{s}ensuremath{lesssim}0.002$ with a relatively fast level velocity of $ensuremath{alpha}=600phantom{rule{0.16em}{0ex}}ensuremath{mu}{mathrm{eV}phantom{rule{0.16em}{0ex}}mathrm{ns}}^{ensuremath{-}1}$ is feasible for optimal choices of parameters or by making use of constructive interference.
{"title":"Spin shuttling in a silicon double quantum dot","authors":"Florian Ginzel, A. Mills, J. Petta, G. Burkard","doi":"10.1103/PHYSREVB.102.195418","DOIUrl":"https://doi.org/10.1103/PHYSREVB.102.195418","url":null,"abstract":"The transport of quantum information between different nodes of a quantum device is among the challenging functionalities of a quantum processor. In the context of spin qubits, this requirement can be met by coherent electron spin shuttling between semiconductor quantum dots. Here we theoretically study a minimal version of spin shuttling between two quantum dots. To this end, we analyze the dynamics of an electron during a detuning sweep in a silicon double quantum dot (DQD) occupied by one electron. Possibilities and limitations of spin transport are investigated. Spin-orbit interaction and the Zeeman effect in an inhomogeneous magnetic field play an important role for spin shuttling and are included in our model. Interactions that couple the position, spin, and valley degrees of freedom open a number of avoided crossings in the spectrum allowing for diabatic transitions and interfering paths. The outcomes of single and repeated spin shuttling protocols are explored by means of numerical simulations and an approximate analytical model based on the solution of the Landau-Zener problem. We find that a spin infidelity as low as $1ensuremath{-}{F}_{s}ensuremath{lesssim}0.002$ with a relatively fast level velocity of $ensuremath{alpha}=600phantom{rule{0.16em}{0ex}}ensuremath{mu}{mathrm{eV}phantom{rule{0.16em}{0ex}}mathrm{ns}}^{ensuremath{-}1}$ is feasible for optimal choices of parameters or by making use of constructive interference.","PeriodicalId":9375,"journal":{"name":"Bulletin of the American Physical Society","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84258745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-03-02DOI: 10.1103/physrevmaterials.4.064202
C. N. Wu, V. M. Pereira, S. Altendorf, S. Liao, Cheng-En Liu, A. Komarek, M. Guo, Hong‐ji Lin, C. Chen, M. Hong, J. Kwo, L. Tjeng
{"title":"Topological insulator interfaced with ferromagnetic insulators: \u0000Bi2Te3\u0000 thin films on magnetite and iron garnets","authors":"C. N. Wu, V. M. Pereira, S. Altendorf, S. Liao, Cheng-En Liu, A. Komarek, M. Guo, Hong‐ji Lin, C. Chen, M. Hong, J. Kwo, L. Tjeng","doi":"10.1103/physrevmaterials.4.064202","DOIUrl":"https://doi.org/10.1103/physrevmaterials.4.064202","url":null,"abstract":"","PeriodicalId":9375,"journal":{"name":"Bulletin of the American Physical Society","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73707248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-03-02DOI: 10.1021/scimeetings.0c06951
Wenhui Mi, M. Pavanello
{"title":"Nonlocal density embedding theory","authors":"Wenhui Mi, M. Pavanello","doi":"10.1021/scimeetings.0c06951","DOIUrl":"https://doi.org/10.1021/scimeetings.0c06951","url":null,"abstract":"","PeriodicalId":9375,"journal":{"name":"Bulletin of the American Physical Society","volume":"378 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75141188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-03-02DOI: 10.1021/acs.nanolett.9b02265.s001
Fengyuan Yang
{"title":"Spin-Hall topological Hall effect in highly tunable Pt/ferrimagnetic-insulator bilayers","authors":"Fengyuan Yang","doi":"10.1021/acs.nanolett.9b02265.s001","DOIUrl":"https://doi.org/10.1021/acs.nanolett.9b02265.s001","url":null,"abstract":"","PeriodicalId":9375,"journal":{"name":"Bulletin of the American Physical Society","volume":"78 S345","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141225405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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