skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

This content will become publicly available on August 5, 2020

Title: Impact of damping on the superconducting gap dynamics induced by intense terahertz pulses

Abstract

In this study, we investigate the interplay between coherent gap dynamics and damping in superconductors taken out of equilibrium by strong optical pulses with subgap terahertz frequencies. A semiphenomenological formalism is developed to include the damping within the electronic subsystem that arises from effects beyond Bardeen-Cooper-Schrieffer mean-field theory, such as interactions between Bogoliubov quasiparticles and decay of the Higgs mode. These processes, conveniently expressed as longitudinal T 1 and transverse T 2 relaxation times in the standard pseudospin language for superconductors, cause the gap amplitude to be suppressed after the pulse is turned off, but before the timescale where thermalization occurs due to coupling to the lattice. Lastly, we show that our model quantitatively captures the experimental gap dynamics reported here of NbN and Nb 3 Sn through the picosecond timescale.

Authors:
ORCiD logo [1];  [2];  [2];  [2];  [1];  [2]
  1. Univ. of Minnesota, Minneapolis, MN (United States)
  2. Ames Lab. and Iowa State Univ., Ames, IA (United States)
Publication Date:
Research Org.:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1557775
Alternate Identifier(s):
OSTI ID: 1547956
Report Number(s):
IS-J-10002
Journal ID: ISSN 2469-9950; PRBMDO
Grant/Contract Number:  
AC02-07CH11358; SC0012336
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 100; Journal Issue: 5; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Cui, Tianbai, Yang, Xu, Vaswani, Chirag, Wang, Jigang, Fernandes, Rafael M., and Orth, Peter P. Impact of damping on the superconducting gap dynamics induced by intense terahertz pulses. United States: N. p., 2019. Web. doi:10.1103/PhysRevB.100.054504.
Cui, Tianbai, Yang, Xu, Vaswani, Chirag, Wang, Jigang, Fernandes, Rafael M., & Orth, Peter P. Impact of damping on the superconducting gap dynamics induced by intense terahertz pulses. United States. doi:10.1103/PhysRevB.100.054504.
Cui, Tianbai, Yang, Xu, Vaswani, Chirag, Wang, Jigang, Fernandes, Rafael M., and Orth, Peter P. Mon . "Impact of damping on the superconducting gap dynamics induced by intense terahertz pulses". United States. doi:10.1103/PhysRevB.100.054504.
@article{osti_1557775,
title = {Impact of damping on the superconducting gap dynamics induced by intense terahertz pulses},
author = {Cui, Tianbai and Yang, Xu and Vaswani, Chirag and Wang, Jigang and Fernandes, Rafael M. and Orth, Peter P.},
abstractNote = {In this study, we investigate the interplay between coherent gap dynamics and damping in superconductors taken out of equilibrium by strong optical pulses with subgap terahertz frequencies. A semiphenomenological formalism is developed to include the damping within the electronic subsystem that arises from effects beyond Bardeen-Cooper-Schrieffer mean-field theory, such as interactions between Bogoliubov quasiparticles and decay of the Higgs mode. These processes, conveniently expressed as longitudinal T1 and transverse T2 relaxation times in the standard pseudospin language for superconductors, cause the gap amplitude to be suppressed after the pulse is turned off, but before the timescale where thermalization occurs due to coupling to the lattice. Lastly, we show that our model quantitatively captures the experimental gap dynamics reported here of NbN and Nb3 Sn through the picosecond timescale.},
doi = {10.1103/PhysRevB.100.054504},
journal = {Physical Review B},
number = 5,
volume = 100,
place = {United States},
year = {2019},
month = {8}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on August 5, 2020
Publisher's Version of Record

Citation Metrics:
Cited by: 2 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Twisting Anderson pseudospins with light: Quench dynamics in terahertz-pumped BCS superconductors
journal, March 2017


Consequences of integrability breaking in quench dynamics of pairing Hamiltonians
journal, February 2019


Energy-Gap Dynamics of Superconducting NbN Thin Films Studied by Time-Resolved Terahertz Spectroscopy
journal, October 2011


Quench dynamics of a superfluid Fermi gas
journal, April 2005


Nonequilibrium Dynamics and Thermodynamics of a Degenerate Fermi Gas Across a Feshbach Resonance
journal, September 2004


Nonequilibrium excitations in superconductors in high-frequency fields
journal, February 1973

  • Ivlev, B. I.; Lisitsyn, S. G.; Eliashberg, G. M.
  • Journal of Low Temperature Physics, Vol. 10, Issue 3-4
  • DOI: 10.1007/BF00654920

Leggett mode controlled by light pulses
journal, January 2019


Dynamical Vanishing of the Order Parameter in a Fermionic Condensate
journal, June 2006


Synchronization in the BCS Pairing Dynamics as a Critical Phenomenon
journal, June 2006


Direct observation of Higgs mode oscillations in the pump-probe photoemission spectra of electron-phonon mediated superconductors
journal, December 2015


Solution for the dynamics of the BCS and central spin problems
journal, August 2005

  • Yuzbashyan, Emil A.; Altshuler, Boris L.; Kuznetsov, Vadim B.
  • Journal of Physics A: Mathematical and General, Vol. 38, Issue 36
  • DOI: 10.1088/0305-4470/38/36/003

Optically enhanced coherent transport in YBa2Cu3O6.5 by ultrafast redistribution of interlayer coupling
journal, May 2014

  • Hu, W.; Kaiser, S.; Nicoletti, D.
  • Nature Materials, Vol. 13, Issue 7
  • DOI: 10.1038/nmat3963

Collective Rabi Oscillations and Solitons in a Time-Dependent BCS Pairing Problem
journal, October 2004


Electrodynamics of the Superconducting State in Ultra-Thin Films at THz Frequencies
journal, May 2013

  • Pracht, Uwe S.; Heintze, Eric; Clauss, Conrad
  • IEEE Transactions on Terahertz Science and Technology, Vol. 3, Issue 3
  • DOI: 10.1109/TTHZ.2013.2255047

Non-equilibrium superconductivity in homogeneous thin films
journal, September 1982


Light-induced collective pseudospin precession resonating with Higgs mode in a superconductor
journal, July 2014


Multiple amplitude modes in strongly coupled phonon-mediated superconductors
journal, March 2016


Possible light-induced superconductivity in K3C60 at high temperature
journal, February 2016

  • Mitrano, M.; Cantaluppi, A.; Nicoletti, D.
  • Nature, Vol. 530, Issue 7591
  • DOI: 10.1038/nature16522

Integrable Time-Dependent Quantum Hamiltonians
journal, May 2018


Signatures of nonadiabatic BCS state dynamics in pump-probe conductivity
journal, July 2014


Higgs Amplitude Mode in the BCS Superconductors Nb 1 x Ti x N Induced by Terahertz Pulse Excitation
journal, July 2013


Ultrafast nonthermal terahertz electrodynamics and possible quantum energy transfer in the Nb 3 Sn superconductor
journal, March 2019


Integrable dynamics of coupled Fermi-Bose condensates
journal, October 2005

  • Yuzbashyan, Emil A.; Kuznetsov, Vadim B.; Altshuler, Boris L.
  • Physical Review B, Vol. 72, Issue 14
  • DOI: 10.1103/PhysRevB.72.144524

Wigner distribution function formalism for superconductors and collisionless dynamics of the superconducting order parameter
journal, July 2004

  • Amin, M. H. S.; Bezuglyi, E. V.; Kijko, A. S.
  • Low Temperature Physics, Vol. 30, Issue 7
  • DOI: 10.1063/1.1789939

Lightwave-driven gapless superconductivity and forbidden quantum beats by terahertz symmetry breaking
journal, July 2019


Nonequilibrium cooper pairing in the nonadiabatic regime
journal, December 2005

  • Yuzbashyan, Emil A.; Altshuler, Boris L.; Kuznetsov, Vadim B.
  • Physical Review B, Vol. 72, Issue 22
  • DOI: 10.1103/PhysRevB.72.220503

Nonequilibrium dynamics and coherent control of BCS superconductors driven by ultrashort THz pulses
journal, November 2009


Transient Increase of the Energy Gap of Superconducting NbN Thin Films Excited by Resonant Narrow-Band Terahertz Pulses
journal, June 2013


Anomalous gap-edge dissipation in disordered superconductors on the brink of localization
journal, May 2016


Theory of nonequilibrium dynamics of multiband superconductors
journal, January 2013


Higgs Mode in the d -Wave Superconductor Bi 2 Sr 2 CaCu 2 O 8 + x Driven by an Intense Terahertz Pulse
journal, March 2018


Nonlinear response of superconducting NbN thin film and NbN metamaterial induced by intense terahertz pulses
journal, May 2013


Ultrafast terahertz-field-induced dynamics of superconducting bulk and quasi-1D samples
journal, May 2013


Random-Phase Approximation in the Theory of Superconductivity
journal, December 1958


Coupling of Higgs and Leggett modes in non-equilibrium superconductors
journal, June 2016

  • Krull, H.; Bittner, N.; Uhrig, G. S.
  • Nature Communications, Vol. 7, Issue 1
  • DOI: 10.1038/ncomms11921

Departure from BCS response in photoexcited superconducting NbN films observed by terahertz spectroscopy
journal, February 2018


Theory of Superconductivity
journal, December 1957


Short-time dynamics in s + i s -wave superconductor with incipient bands
journal, July 2018


Theory of Anderson pseudospin resonance with Higgs mode in superconductors
journal, August 2015


Terahertz-light quantum tuning of a metastable emergent phase hidden by superconductivity
journal, June 2018


Amplitude modes and dynamic coexistence of competing orders in multicomponent superconductors
journal, June 2015


Relaxation and Persistent Oscillations of the Order Parameter in Fermionic Condensates
journal, March 2006


Nonequilibrium Dynamics of Weakly and Strongly Paired Superconductors
journal, August 2009


Nonlinear lattice dynamics as a basis for enhanced superconductivity in YBa2Cu3O6.5
journal, December 2014


Nonequilibrium BCS State Dynamics Induced by Intense Terahertz Pulses in a Superconducting NbN Film
journal, October 2012


Ultrafast optical spectroscopy of strongly correlated materials and high-temperature superconductors: a non-equilibrium approach
journal, March 2016


Nonrelativistic Dynamics of the Amplitude (Higgs) Mode in Superconductors
journal, October 2015


Coherent dynamics and pump-probe spectra of BCS superconductors
journal, December 2007


Resonant and nonresonant control over matter and light by intense terahertz transients
journal, August 2013