November 11, 2025Open Access

Experimental Evidence of the Present Containment Principle (PCP) via Time Reversal on a NISQ Quantum Computer

Key Points

Reversal fidelity of 61.2% indicates a strong performance in the time-reversal experiment.
The study utilized a noisy intermediate-scale quantum computer to explore quantum information principles.
Experimental evidence for the Present Containment Principle suggests fundamental conservation in quantum states.
Results highlight the effects of noise and accessibility on the behavior of quantum information.

Abstract

This work presents experimental evidence supporting the Present Containment Principle (PCP), a theory postulating that quantum information is fundamentally conserved (global unitarity), and that apparent irreversibility and the arrow of time emerge from practical limitations, such as noise and accessibility. Using an IBM noisy intermediate-scale quantum (NISQ) computer, a time-reversal (Loschmidt echo) experiment was conducted with an entangled Bell state. The results demonstrate a reversal fidelity of 61.2

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