Pith. sign in

REVIEW 2 cited by

The Unruh effect in quantum information beyond the single-mode approximation

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 1007.4670 v2 pith:NYWJ66NY submitted 2010-07-27 quant-ph gr-qc

D. E. Bruschi , J. Louko , E. Martin-Martinez , A. Dragan , I. Fuentes This is my paper · ORCID
classification quant-phgr-qc
keywords approximationsingle-modebeyondinformationquantumaddressanalysisappropriate
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
read the original abstract

We address the validity of the single-mode approximation that is commonly invoked in the analysis of entanglement in non-inertial frames and in other relativistic quantum information scenarios. We show that the single-mode approximation is not valid for arbitrary states, finding corrections to previous studies beyond such approximation in the bosonic and fermionic cases. We also exhibit a class of wave packets for which the single-mode approximation is justified subject to the peaking constraints set by an appropriate Fourier transform.

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Surviving correlations across a horizon: reflected entropy for bosonic fields in non-inertial frames and black hole spacetimes

    hep-th 2026-08 conditional novelty 6.0 of 10

    Bosonic Alice-Bob reflected entropy saturates at nonzero floors (1.757 bits for Bell, 0.315 for GHZ) at infinite acceleration, while the inter-wedge reflected entropy diverges linearly in the squeezing parameter.

  2. Delay-Independent Stability of Nonlinear Delay Differential Equations via Isospectral Reduction

    math.DS 2025-08 unverdicted novelty 5.0 of 10

    Claims a delay-independent global exponential stability criterion for a broad class of nonlinear nonautonomous delay differential equations using isospectral reduction of an associated sequence of matrices.

Pith tools