Submitted:
22 November 2020
Posted:
24 November 2020
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Abstract
The phenomenon of quantum erasure exposed a remarkable ambiguity in the interpretation of quantum entanglement. On the one hand, the data is compatible with the possibility of arrow-of-time violations. On the other hand, it is also possible that temporal non-locality is an artifact of post-selection. Twenty years later, this problem can be solved with a quantum monogamy experiment, in which four entangled quanta are measured at the same time. If Bell violations can be recovered from a “monogamous” quantum system, then the arrow of time is obeyed at the quantum level.
Keywords:
quantum entanglement
; delayed-choice experiments
; quantum erasure
; quantum monogamy
; experiment proposal.
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