Heat and Work Along Individual Trajectories of a Quantum Bit.

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ID: 103087
2020
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Abstract
We use a near quantum limited detector to experimentally track individual quantum state trajectories of a driven qubit formed by the hybridization of a waveguide cavity and a transmon circuit. For each measured quantum coherent trajectory, we separately identify energy changes of the qubit as heat and work, and verify the first law of thermodynamics for an open quantum system. We further establish the consistency of these results by comparison with the master equation approach and the two-projective-measurement scheme, both for open and closed dynamics, with the help of a quantum feedback loop that compensates for the exchanged heat and effectively isolates the qubit.
Reference Key
naghiloo2020heatphysical Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Naghiloo, M;Tan, D;Harrington, P M;Alonso, J J;Lutz, E;Romito, A;Murch, K W;
Journal physical review letters
Year 2020
DOI
10.1103/PhysRevLett.124.110604
URL
Keywords
thermodynamics ab initio calculations diamines molecular crystals sublimation

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