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Eckhardt CJ, Chattopadhyay S, Kennes DM, Demler EA, Sentef MA, Michael MH. Theory of resonantly enhanced photo-induced superconductivity. Nat Commun 2024; 15:2300. [PMID: 38485935 PMCID: PMC10940728 DOI: 10.1038/s41467-024-46632-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 02/29/2024] [Indexed: 03/18/2024] Open
Abstract
Optical driving of materials has emerged as a versatile tool to control their properties, with photo-induced superconductivity being among the most fascinating examples. In this work, we show that light or lattice vibrations coupled to an electronic interband transition naturally give rise to electron-electron attraction that may be enhanced when the underlying boson is driven into a non-thermal state. We find this phenomenon to be resonantly amplified when tuning the boson's frequency close to the energy difference between the two electronic bands. This result offers a simple microscopic mechanism for photo-induced superconductivity and provides a recipe for designing new platforms in which light-induced superconductivity can be realized. We discuss two-dimensional heterostructures as a potential test ground for light-induced superconductivity concretely proposing a setup consisting of a graphene-hBN-SrTiO3 heterostructure, for which we estimate a superconducting Tc that may be achieved upon driving the system.
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Affiliation(s)
- Christian J Eckhardt
- Max Planck Institute for the Structure and Dynamics of Matter, Center for Free-Electron Laser Science (CFEL), Luruper Chaussee 149, 22761, Hamburg, Germany
- Institut für Theorie der Statistischen Physik, RWTH Aachen University and JARA-Fundamentals of Future Information Technology, 52056, Aachen, Germany
| | | | - Dante M Kennes
- Max Planck Institute for the Structure and Dynamics of Matter, Center for Free-Electron Laser Science (CFEL), Luruper Chaussee 149, 22761, Hamburg, Germany
- Institut für Theorie der Statistischen Physik, RWTH Aachen University and JARA-Fundamentals of Future Information Technology, 52056, Aachen, Germany
| | - Eugene A Demler
- Institute for Theoretical Physics, ETH Zürich, 8093, Zürich, Switzerland
| | - Michael A Sentef
- Max Planck Institute for the Structure and Dynamics of Matter, Center for Free-Electron Laser Science (CFEL), Luruper Chaussee 149, 22761, Hamburg, Germany
- Institute for Theoretical Physics and Bremen Center for Computational Materials Science, University of Bremen, 28359, Bremen, Germany
- H H Wills Physics Laboratory, University of Bristol, Bristol, BS8 1TL, UK
| | - Marios H Michael
- Max Planck Institute for the Structure and Dynamics of Matter, Center for Free-Electron Laser Science (CFEL), Luruper Chaussee 149, 22761, Hamburg, Germany.
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Passetti G, Eckhardt CJ, Sentef MA, Kennes DM. Cavity Light-Matter Entanglement through Quantum Fluctuations. Phys Rev Lett 2023; 131:023601. [PMID: 37505942 DOI: 10.1103/physrevlett.131.023601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 06/28/2023] [Indexed: 07/30/2023]
Abstract
The hybridization between light and matter forms the basis to achieve cavity control over quantum materials. In this Letter we investigate a cavity coupled to a quantum chain of interacting spinless fermions by numerically exact solutions and perturbative analytical expansions. We draw two important conclusions about such systems: (i) Specific quantum fluctuations of the matter system play a pivotal role in achieving entanglement between light and matter; and (ii) in turn, light-matter entanglement is a key ingredient to modify electronic properties by the cavity. We hypothesize that quantum fluctuations of those matter operators to which the cavity modes couple are a general prerequisite for light-matter entanglement in the ground state. Implications of our findings for light-matter-entangled phases, cavity-modified phase transitions in correlated systems, and measurement of light-matter entanglement through Kubo response functions are discussed.
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Affiliation(s)
- Giacomo Passetti
- Institut für Theorie der Statistischen Physik, RWTH Aachen University and JARA-Fundamentals of Future Information Technology, 52056 Aachen, Germany
| | - Christian J Eckhardt
- Institut für Theorie der Statistischen Physik, RWTH Aachen University and JARA-Fundamentals of Future Information Technology, 52056 Aachen, Germany
- Max Planck Institute for the Structure and Dynamics of Matter, Center for Free-Electron Laser Science (CFEL), Luruper Chaussee 149, 22761 Hamburg, Germany
| | - Michael A Sentef
- Max Planck Institute for the Structure and Dynamics of Matter, Center for Free-Electron Laser Science (CFEL), Luruper Chaussee 149, 22761 Hamburg, Germany
- H H Wills Physics Laboratory, University of Bristol, Bristol BS8 1TL, United Kingdom
| | - Dante M Kennes
- Institut für Theorie der Statistischen Physik, RWTH Aachen University and JARA-Fundamentals of Future Information Technology, 52056 Aachen, Germany
- Max Planck Institute for the Structure and Dynamics of Matter, Center for Free-Electron Laser Science (CFEL), Luruper Chaussee 149, 22761 Hamburg, Germany
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Morris KR, Griesser UJ, Eckhardt CJ, Stowell JG. Theoretical approaches to physical transformations of active pharmaceutical ingredients during manufacturing processes. Adv Drug Deliv Rev 2001; 48:91-114. [PMID: 11325478 DOI: 10.1016/s0169-409x(01)00100-4] [Citation(s) in RCA: 198] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Processing-induced transformations (PITs) during pharmaceutical manufacturing are well known but difficult to predict and often difficult to control. This review of the concepts of transformations is couched in terms of the issues associated with identifying rate-controlling events from the materials side and the processing side. Specifically, the approach is reconciling the characteristic time scale of the structural change(s) in the material with the time scale of the processing-induced stress. This is definitely a model (or rather a melding of a group of existing theories) in development. This overview is a 'snapshot' of the authors' attempts to identify the categories of existing theories needed to encompass all of the relevant events for each possible PIT. The ultimate goal is to establish a framework of concepts and theories for consideration, discussion, and modeling of PITs as well as to locate much of the relevant literature in the framework.
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Affiliation(s)
- K R Morris
- Department of Industrial and Physical Pharmacy, Purdue University, West Lafayette, IN 47907-1336, USA.
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Sartwell J, Eckhardt CJ. Reply to "Comment on 'Brillouin-scattering study of the elastic constants of phenothiazine through the phase transition' ". Phys Rev B Condens Matter 1995; 52:10635-10636. [PMID: 9980118 DOI: 10.1103/physrevb.52.10635] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Sartwell J, Eckhardt CJ. Piezomodulated-Raman-spectroscopy study of the phase transition in phenothiazine. Phys Rev B Condens Matter 1993; 48:13361-13371. [PMID: 10007730 DOI: 10.1103/physrevb.48.13361] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Sartwell J, Eckhardt CJ. Brillouin-scattering study of the elastic constants of phenothiazine through the phase transition. Phys Rev B Condens Matter 1993; 48:12438-12448. [PMID: 10007610 DOI: 10.1103/physrevb.48.12438] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Kulver R, Eckhardt CJ. Translational-rotational modes in noncentrosymmetric lattices: A lattice-dynamical interpretation of the phenanthrene phase transition. Phys Rev B Condens Matter 1988; 37:5351-5356. [PMID: 9943717 DOI: 10.1103/physrevb.37.5351] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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White KM, Eckhardt CJ. Comment on "Relations between microscopic and macroscopic lowest-order optical nonlinearities of molecular crystals with one- or two-dimensional units". Phys Rev A Gen Phys 1987; 36:5463-5464. [PMID: 9898825 DOI: 10.1103/physreva.36.5463] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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White KM, Eckhardt CJ. Optimization of effective nonlinear coefficients for second-harmonic generation in molecular crystals. Phys Rev A Gen Phys 1987; 36:3885-3888. [PMID: 9899324 DOI: 10.1103/physreva.36.3885] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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White KM, Eckhardt CJ. Mode anharmonicity in molecular crystals studied by piezomodulated Raman spectrosocpy. Phys Rev Lett 1987; 59:574-577. [PMID: 10035809 DOI: 10.1103/physrevlett.59.574] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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