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Higgs-Mediated Optical Amplification in a Nonequilibrium Superconductor
Open accessAbstract
We propose a novel nonequilibrium phenomenon, through which a prompt quench from a metal to a transient superconducting state can induce large oscillations of the order parameter amplitude.We argue that this oscillating mode acts as a source of parametric amplification of the incident radiation.We report experimental results on optically driven K 3 C 60 that are consistent with these predictions.The effect is found to disappear when the onset of the excitation becomes slower than the Higgs-mode period, consistent with the theory proposed here.These results open new possibilities for the use of collective modes in many-body systems to induce nonlinear optical effects.
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The optical properties reported for the photoexcited state with T > Tc at ∆t = 1 ps are qualitatively similar to those of the equilibrium superconducting state.
“The optical properties reported for the photoexcited state with T > T c at ∆ t = 1 ps are qualitatively similar to those of the equilibrium superconducting state.”
From Optical Saturation Produces Spurious Evidence for Photoinduced Superconductivity in K 3 C 60 (2023) · cites this paper as [9]
Section IV (Experimental Results; page unavailable) reports that the photoexcited state's optical properties resemble those of the equilibrium superconductor for longer pump pulses. Section III identifies the photoexcited state as arising from the high-temperature phase above Tc. The copy does not establish the claimed pump–probe delay of Δt = 1 ps: Section IV describes measurements at the peak of the response, while its 1.8 ps value is a pump-pulse duration, not a delay. (LLM, conf=0.86)
Experimental — accuracy not yet measuredHeating can also distort the photoconductivity spectrum at longer time delays [8,9].
“Heating can also distort the photoconductivity spectrum at longer time delays [8, 9].”
From Optical Saturation Produces Spurious Evidence for Photoinduced Superconductivity in K 3 C 60 (2023) · cites this paper as [9]
Appendix C (page unavailable) models sample heating and finds that it would change the optical conductivity spectrum, supporting the possibility of a heating-related spectral change. It does not establish that heating distorts the spectrum at longer pump–probe delays. Section IV discusses longer pump-pulse durations, which are not longer time delays. (LLM, conf=0.84)
Experimental — accuracy not yet measuredThe evidence for photoinduced superconductivity in K3C60 is susceptible to these distortions.
“we describe how the evidence for photoinduced superconductivity in K3C60 [6-9] is susceptible to these distortions”
From Optical Saturation Produces Spurious Evidence for Photoinduced Superconductivity in K 3 C 60 (2023) · cites this paper as [9]
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Cites
Light-Induced Superconductivity in a Stripe-Ordered Cuprate
Fausti, D., Tobey, R. I., Dean, N., Kaiser, S., Dienst, A., Hoffmann, M. C., Pyon, S., Takayama, T., Takagi, H., & Cavalleri, A. (2011) · Science · doi:10.1126/science.1197294 · Cited by 1,203
Self-citationPossible light-induced superconductivity in K3C60 at high temperature
Mitrano, M., Cantaluppi, A., Nicoletti, D., Kaiser, S., Perucchi, A., Lupi, S., Di Pietro, P., Pontiroli, D., Riccò, M., Clark, S. R., et al. (2016) · Nature · doi:10.1038/nature16522 · Cited by 815
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Cited by
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Dodge, J. S., Lopez, L., & Sahota, D. G. (2023) · Physical Review Letters · doi:10.1103/physrevlett.130.146002 · Cited by 24
Metadata
- Authors
- Buzzi, M., Jotzu, G., Cavalleri, A., Cirac, J. I., Demler, E. A., Halperin, B. I., Lukin, M. D., Shi, T., Wang, Y., & Podolsky, D.
- Affiliations
- Max Planck Institute for the Structure and Dynamics of Matter (DE)
- Max Planck Institute of Quantum Optics (DE)
- Harvard University (US)
- Chinese Academy of Sciences (CN)
- Technion – Israel Institute of Technology (IL)
- ORCID
- Venue
- Physical Review X
- Publisher
- American Physical Society (APS)
- Published
- 2021-03-17
- Volume
- 11
- Issue
- 1
- ISSN
- 2160-3308 (ISSN-L)
- OpenAlex
- W2971273469
- Cited by
- 49
- References
- 2
- Citations by year
- 2026: 6 · 2025: 3 · 2024: 10 · 2023: 10 · 2022: 7 · 2021: 8
- FWCI
- 3.68
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Physical Review X (publishedVersion, cc-by)
- arXiv (Cornell University) (submittedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
- MPG.PuRe (Max Planck Society) (submittedVersion, other-oa)
- MPG.PuRe (Max Planck Society) (submittedVersion, cc-by)
- Repository for Publications and Research Data (ETH Zurich) (submittedVersion, cc-by)
- arXiv (Cornell University)
- ETH Zürich Research Collection (cc-by)
- Funders
- H2020 European Research Council (319286)
- Seventh Framework Programme (FP7/2007-2013)
- Deutsche Forschungsgemeinschaft (SFB925)
- National Science Foundation (PHY-1607611)
- Israel Science Foundation (1803/18)
- Defense Advanced Research Projects Agency (D18AC00014)
- Air Force Office of Scientific Research (FA95501610323)
- U.S. Department of Energy (DE-AC02-05CH11231)
- Harvard-MIT Center for Ultracold Atoms
- Vannevar Bush Faculty Fellowship
- National Energy Research Scientific Computing Center
- Topics
- Physical Sciences › Physics and Astronomy › Condensed Matter Physics › Physics of Superconductivity and Magnetism
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Strong Light-Matter Interactions
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Laser-Matter Interactions and Applications
- Keywords
- Higgs mode, nonequilibrium superconductivity, order parameter oscillations, K3C60, fullerides, collective excitations, nonlinear optics
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