Quantum Thermometry for Ultra-Low Temperatures Using Probe and Ancilla Qubit Chains

We propose a scheme to enhance the range and precision of ultra-low temperature measurements by employing a probe qubit coupled to a chain of ancilla qubits. Specifically, we analyze a qubit chain governed by Heisenberg <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML&qu...

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Bibliographic Details
Main Authors: Asghar Ullah, Vipul Upadhyay, Özgür E. Müstecaplıoğlu
Format: Article
Language:English
Published: MDPI AG 2025-02-01
Series:Entropy
Subjects:
Online Access:https://www.mdpi.com/1099-4300/27/2/204
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