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For a quantum system with time-reversal symmetrytime-reversal symmetry, other than the absence of a magnetic field, can we infer anything else about the system?
For a quantum system with time-reversal symmetry, other than the absence of a magnetic field, can we infer anything else about the system?
For a quantum system with time-reversal symmetry, other than the absence of a magnetic field, can we infer anything else about the system?