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QI: Fachverband Quanteninformation
QI 10: Quantum Thermodynamics and Open Quantum Systems I
QI 10.7: Talk
Tuesday, March 7, 2023, 12:45–13:00, B302
Probing coherent quantum thermodynamics using a trapped ion — •Oleksiy Onishchenko1, Giacomo Guarnieri2, Pablo Rosillo-Rodes3, Daniël Pijn1, Janine Hilder1, Ulrich G. Poschinger1, Martí Perarnau-Llobet4, Jens Eisert2, and Ferdinand Schmidt-Kaler1 — 1QUANTUM, Institut für Physik, Universität Mainz, Staudingerweg 7, Mainz, Germany — 2Dahlem Center for Complex Quantum Systems, Freie Universität Berlin, Berlin, Germany — 3Institute for Cross-Disciplinary Physics and Complex Systems, Campus Universitat de les Illes Balears, Palma, Spain — 4Department of Applied Physics, University of Geneva, Geneva, Switzerland
We report an experimental measurement of the genuine quantum correction to the classical fluctuation-dissipation relation (FDR) [1] in a trapped ion platform. We employ a single qubit and perform thermalization and coherent drive via laser pulses to implement a quantum coherent work protocol [1]. Using the excellent degree of control of trapped ions, we find agreement with the theory of quantum FDR and violate any classical explanation by more than 10.9 standard deviations [2]. This work opens the path to further experimental exploration of quantum thermodynamics, in particular to measurements of non-Markovian evolution, where the state of the qubit would not be reset between single experiments.
[1] M. Scandi et al., Phys. Rev. Research 2, 023377 (2020).
[2] O. Onishchenko et al., arXiv:2207.14325 (2022).