English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Higgs-mediated optical amplification in a non-equilibrium superconductor

Buzzi, M., Jotzu, G., Cavalleri, A., Cirac, J. I., Demler, E. A., Halperin, B. I., et al. (2019). Higgs-mediated optical amplification in a non-equilibrium superconductor.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0004-942A-6 Version Permalink: http://hdl.handle.net/21.11116/0000-0004-942B-5
Genre: Paper

Files

show Files
hide Files
:
1908.10879.pdf (Preprint), 6MB
Name:
1908.10879.pdf
Description:
Downloaded from arxiv.org: 2019-08-30
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
2019
Copyright Info:
© the Author(s)

Locators

show
hide
Locator:
https://arxiv.org/abs/1908.10879 (Preprint)
Description:
-

Creators

show
hide
 Creators:
Buzzi, M.1, Author              
Jotzu, G.2, Author
Cavalleri, A.1, Author              
Cirac, J. I.2, Author
Demler, E. A.3, Author
Halperin, B. I.3, Author
Lukin, M. D.3, Author
Shi, T.4, Author
Wang, Y.3, Author
Podolsky, D.5, Author
Affiliations:
1Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938293              
2Max Planck Institute for Quantum Optics, ou_persistent22              
3Department of Physics, Harvard University, Cambridge, ou_persistent22              
4CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Science, ou_persistent22              
5Physics Department, Technion, ou_persistent22              

Content

show
hide
Free keywords: -
 Abstract: he quest for new functionalities in quantum materials has recently been extended to non-equilibrium states, which are interesting both because they exhibit new physical phenomena and because of their potential for high-speed device applications. Notable advances have been made in the creation of metastable phases and in Floquet engineering under external periodic driving. In the context of non-equilibrium superconductivity, examples have included the generation of transient superconductivity above the thermodynamic transition temperature, the excitation of coherent Higgs mode oscillations, and the optical control of the interlayer phase in cuprates. Here, we propose theoretically a novel non-equilibrium phenomenon, through which a prompt quench from a metal to a transient superconducting state could induce large oscillations of the order parameter amplitude. We argue that this oscillating mode could act as a source of parametric amplification of the incident radiation. We report experimental results on optically driven K3C60 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 non-linear optical effects.

Details

show
hide
Language(s): eng - English
 Dates: 2019-08-28
 Publication Status: Published online
 Pages: 11
 Publishing info: -
 Table of Contents: -
 Rev. Method: No review
 Identifiers: arXiv: 1908.10879
 Degree: -

Event

show

Legal Case

show

Project information

show

Source

show