Journal
PHYSICAL REVIEW A
Volume 94, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.94.062106
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Funding
- EPSRC [EP/K02163X/1, EP/I004831/2]
- EPSRC [EP/I004831/2, EP/K02163X/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [1307222, EP/I004831/2, EP/K02163X/1] Funding Source: researchfish
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We derive a microscopic model for dissipative dynamics in a system of mutually interacting qubits coupled to a thermal bath that generalizes the dissipative model of Landau-Lifshitz-Gilbert to the case of anisotropic bath couplings. We show that the dissipation acts to bias the quantum trajectories towards a reduced phase space. This model applies to a system of superconducting flux qubits whose coupling to the environment is necessarily anisotropic. We study the model in the context of the D-Wave computing device and show that the form of environmental coupling in this case produces dynamics that are closely related to several models proposed on phenomenological grounds.
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