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Abstract
For a standard two-level atom coupled to the quantized field of a resonant cavity, finite-temperature effects lead to thermal occupation of the cavity modes that obfuscates measurement of the quantum nature of the atom-light interaction. In this paper we demonstrate that using a hybrid system of a superconducting cavity coupled to a multilevel Rydberg atom, it is possible to observe the quantum nature of strong coupling even at finite temperatures and to exploit this coupling to permit cooling of the thermal microwave mode towards the ground state, enabling observation of coherent vacuum Rabi oscillations even at 4 K for realistic experimental parameters. Cooling for multiple atoms is also explored, showing maximal cooling for small samples, making this a viable approach to cavity cooling with potential applications in long-range coupling of superconducting qubits via thermal waveguides.
Original language | English |
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Article number | 013707 |
Number of pages | 6 |
Journal | Physical Review A |
Volume | 105 |
Issue number | 1 |
DOIs | |
Publication status | Published - 12 Jan 2022 |
Keywords
- quantum electrodynamics (QED)
- finite temperature effects
- hybrid atom-cavity systems
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Dive into the research topics of 'Strong coupling and active cooling in a finite temperature hybrid atom-cavity system'. Together they form a unique fingerprint.Projects
- 2 Finished
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A Hybrid Atom-Photon-Superconductor Quantum Interface
EPSRC (Engineering and Physical Sciences Research Council)
1/07/15 → 30/06/20
Project: Research Fellowship
Datasets
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Data for: "Strong coupling and active cooling in a finite temperature hybrid atom-cavity system"
Keary, L. (Creator) & Pritchard, J. (Creator), University of Strathclyde, 10 Jan 2022
DOI: 10.15129/3fb60279-8b9e-4834-bbb3-c6309c5b1e38
Dataset