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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Testing time reversal symmetry in artificial atoms

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Brito, Frederico [1] ; Rouxinol, Francisco [2] ; LaHaye, M. D. [2] ; Caldeira, Amir O. [3]
Total Authors: 4
[1] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP - Brazil
[2] Syracuse Univ, Dept Phys, Syracuse, NY 13244 - USA
[3] Univ Estadual Campinas, UNICAMP, Inst Fis Gleb Wataghin, BR-13083859 Campinas, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: NEW JOURNAL OF PHYSICS; v. 17, JUL 3 2015.
Web of Science Citations: 6

Over the past several decades, a rich series of experiments has repeatedly verified the quantum nature of superconducting devices, leading some of these systems to be regarded as artificial atoms. In addition to their application in quantum information processing, these `atoms' provide a test bed for studying quantum mechanics in macroscopic limits. Regarding the last point, we present here a feasible protocol for directly testing time reversal symmetry (TRS) through the verification of the microreversibility principle in a superconducting artificial atom. TRS is a fundamental property of quantum mechanics and is expected to hold if the dynamics of the artificial atom strictly follow the Schrodinger equation. However, this property has yet to be tested in any macroscopic quantum system. In the end, as an application of this work, we outline how the successful implementation of the protocol would provide the first verification of the quantum work fluctuation theorems with superconducting systems. (AU)

FAPESP's process: 12/51589-1 - Materials World Network: investigations of quantum fluctuation relations using superconducting Qubits
Grantee:Amir Ordacgi Caldeira
Support type: Regular Research Grants