Testing time reversal symmetry in artificial atoms

Autor(es)

Brito, Frederico ^[1] ; Rouxinol, Francisco ^[2] ; LaHaye, M. D. ^[2] ; Caldeira, Amir O. ^[3]

Afiliação do(s) autor(es)

^[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

• Tipo de documento: Artigo Científico
• Fonte: NEW JOURNAL OF PHYSICS; v. 17, JUL 3 2015.
• Citações Web of Science: 6

Resumo

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)

• Processo FAPESP: 12/51589-1 - Estudos sobre relações de flutuações quânticas usando Qubits supercondutores
• Beneficiário: Amir Ordacgi Caldeira
• Linha de fomento: Auxílio à Pesquisa - Regular