Measurement-Induced-Nonlocality via the Unruh effect

TL;DR

This paper investigates measurement-induced nonlocality (MIN) for Dirac and Bosonic fields in non-inertial frames, revealing distinct behaviors under acceleration and comparing it with quantum nonlocality and geometric discord.

Contribution

It extends MIN analysis beyond the single-mode approximation for Dirac and Bosonic fields, highlighting differences in their nonlocality under acceleration.

Findings

MIN for Dirac fields persists at all accelerations

MIN for Bosonic fields decays to zero at infinite acceleration

MIN is more general than Bell inequality violations

Abstract

Treated beyond the single-mode approximation, Measurement-Induced-Nonlocality (MIN) is investigated for both Dirac and Bosonic fields in non-inertial frames. Two distinctly differences between the Dirac and Bosonic fields are: (i) the MIN for Dirac fields persists for any acceleration, while the quantity for Bosonic fields does decay to zero in the infinite acceleration limit; (ii) the dynamic behaviors of the MIN for Dirac fields is quite different from the Bosonic fields case. Besides, we also study the nonlocality for Dirac fields and find that the MIN is more general than the quantum nonlocality related to violation of Bell's inequalities. Meanwhile some discussions of geometric discord are presented too.