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Quantum State Preparation Representation

Precision Enhancement in Transient Quantum Thermometry:Cold-Probe Bias and Its Removal

arXiv
Authors: Debarupa Saha, Ujjwal Sen

Year

2026

Paper ID

3509

Status

Preprint

Abstract Read

~2 min

Abstract Words

93

Citations

0

Abstract

We unveil a temperature bias of the probe in transient quantum thermometry under Markovian dynamics. Specifically, for qubit thermometers evolving under Markovian dynamics, we show that enhanced precision beyond the steady state limit can be achieved if and only if the probe is initially colder than the thermal state corresponding to the bath temperature to be estimated. In contrast, this temperature bias can be lifted when the probe dynamics is non-Markovian. In the non-Markovian regime, both hot and cold probes can simultaneously attain the same transient maximum precision, well above the steady-state value.

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  • This paper contributes to the Quantum State Preparation & Representation research area in the Quantum Articles archive.
  • It adds a 2026 reference point for readers tracking recent quantum research.
  • We unveil a temperature bias of the probe in transient quantum thermometry under Markovian dynamics.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2601.15237 [2] arXiv https://arxiv.org/abs/2601.15237 [3] Publisher https://arxiv.org/abs/2601.15237

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Current Paper #3509 #68971 On solutions of the Schrödinger...

External citation index: OpenAlex citation signal • updated 2026-06-14 14:22:59

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