Note on invariant properties of a quantum system placed into thermodynamic environment

The analysis conducted in this work indicates that interactions of a CP-violating (and CPT-preserving) quantum system with a thermodynamic environment can produce the impression of a CPT violation in the system. This conclusion is reasonably consistent with the results reported for decays of neutral K-mesons. •Invariant properties of a quantum system are affected by thermodynamic environment.•CP-violating systems may seem CPT violating due to thermodynamic interference.•These conclusions are consistent with CPT discrepancies observed in CP-violating kaon decays.