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Critical slowing do...
Critical slowing down in circuit quantum electrodynamics
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- Brookes, Paul (författare)
- University College London (UCL)
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- Tancredi, Giovanna, 1981 (författare)
- University Of Oxford,Chalmers tekniska högskola,Chalmers University of Technology
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- Patterson, Andrew D. (författare)
- University Of Oxford
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- Rahamim, Joseph (författare)
- University Of Oxford
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- Esposito, Martina (författare)
- University Of Oxford
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- Mavrogordatos, Themistoklis K. (författare)
- Stockholms universitet,Fysikum,Stockholm University
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- Leek, Peter J. (författare)
- University Of Oxford
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- Ginossar, E. (författare)
- University of Surrey
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- Szymanska, Marzena H. (författare)
- University College London (UCL)
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(creator_code:org_t)
- American Association for the Advancement of Science (AAAS), 2021
- 2021
- Engelska.
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Ingår i: Science advances. - : American Association for the Advancement of Science (AAAS). - 2375-2548. ; 7:21
- Relaterad länk:
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https://research.cha... (primary) (free)
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https://advances.sci...
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https://doi.org/10.1...
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https://research.cha...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
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- Critical slowing down of the time it takes a system to reach equilibrium is a key signature of bistability in dissipative first-order phase transitions. Understanding and characterizing this process can shed light on the underlying many-body dynamics that occur close to such a transition. Here, we explore the rich quantum activation dynamics and the appearance of critical slowing down in an engineered superconducting quantum circuit. Specifically, we investigate the intermediate bistable regime of the generalized Jaynes-Cummings Hamiltonian (GJC), realized by a circuit quantum electrodynamics (cQED) system consisting of a transmon qubit coupled to a microwave cavity. We find a previously unidentified regime of quantum activation in which the critical slowing down reaches saturation and, by comparing our experimental results with a range of models, we shed light on the fundamental role played by the qubit in this regime.
Ämnesord
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
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- ref (ämneskategori)
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