Quantum Pairing Time Orders |
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Authors: | Alexander V. Balatsky Pavel O. Sukhachov Sumanta Bandyopadhyay |
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Affiliation: | Nordita, KTH Royal Institute of Technology and Stockholm University, Roslagstullsbacken 23, SE-106 91 Stockholm, Sweden |
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Abstract: | The concept of the time-independent correlators for the even- and odd-frequency pairing states that can be defined for both bosonic and fermionic quasiparticles is proposed. These correlators explicitly capture the existence of two distinct classes of pairing states and provide a direct probe of the hidden Berezinskii order. This concept is illustrated in the cases of pairings for Majorana fermions and quasiparticles in Dirac semimetals. It is shown that the time-independent correlator is able to effectively capture the energy scale relevant for pairing. |
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Keywords: | Berezinskii odd frequency order dynamics superconductivity time orders |
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