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Open Quantum Systems Decoherence
Noisy Spins and the Richardson-Gaudin Model
arXiv
Authors: Daniel A. Rowlands, Austen Lamacraft
Year
2017
Paper ID
25339
Status
Preprint
Abstract Read
~2 min
Abstract Words
89
Citations
N/A
Abstract
We study a system of spins (qubits) coupled to a common noisy environment, each precessing at its own frequency. The correlated noise experienced by the spins implies long-lived correlations that relax only due to the differing frequencies. We use a mapping to a non-Hermitian integrable Richardson-Gaudin model to find the exact spectrum of the quantum master equation in the high-temperature limit, and hence determine the decay rate. Our solution can be used to evaluate the effect of inhomogeneous splittings on a system of qubits coupled to a common bath.
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- This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
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- We study a system of spins (qubits) coupled to a common noisy environment, each precessing at its own frequency.
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