Classes of metastable Thermodynamic Quantum Time Crystals
| Autor: | Timur R. Galimzyanov, Sergei I. Mukhin |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Physics
Instanton Quantum Physics Strongly Correlated Electrons (cond-mat.str-el) Thermodynamic equilibrium Condensed Matter - Superconductivity Degenerate energy levels FOS: Physical sciences Charge (physics) 02 engineering and technology Quantum spacetime 021001 nanoscience & nanotechnology 01 natural sciences Imaginary time Superconductivity (cond-mat.supr-con) Theoretical physics Condensed Matter - Strongly Correlated Electrons 0103 physical sciences Quantum field theory 010306 general physics 0210 nano-technology Quantum Physics (quant-ph) Spin-½ |
| Popis: | We found that thermodynamic quantum time crystals in fermi systems, defined as quantum orders oscillating periodically in the imaginary Matsubara time with zero mean, are metastable for two general classes of solutions. Mean-field time independent solutions proved to have lower free energy manifesting true thermodynamic equilibrium with either single or multiple (competing) charge, spin and superconducting symmetry breaking orders. The 'no-go' theorem is proven analytically for a case of long-range interactions between fermions in momentum space in electron-hole and Cooper channels. 5 pages, 3 figures |
| Databáze: | OpenAIRE |
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