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Quantum Algorithms

Detecting nonclassicality in randomly-displaced copies of a squeezed state

arXiv

Authors: Mehmet Emre Tasgin

Year

2026

Paper ID

63781

Status

Preprint

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~2 min

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Abstract

We address a fundamental question: Can one determine whether a received signal is squeezed when each copy arrives with a different displacement/amplitude? We introduce an interaction Hamiltonian that converts quadrature squeezing into number squeezing. Using this conversion, we test whether the copies satisfy g⁽²⁾(0)<1. The Hamiltonian itself does not create nonclassicality; it only transfers it from quadrature squeezing to number squeezing. This allows us to identify squeezing even when individual copies have random displacements.

Why This Paper Matters

It adds a 2026 reference point for readers tracking recent quantum research.
We address a fundamental question: Can one determine whether a received signal is squeezed when each copy arrives with a different displacement/amplitude?

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2605.18708 [2] arXiv https://arxiv.org/abs/2605.18708 [3] Publisher https://arxiv.org/abs/2605.18708

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