Optical Pumping of Bardeen-Cooper-Schrieffer Superconductors
arXiv:2407.16350 · doi:10.1103/PhysRevB.110.184513
Abstract
Motivated by the generation by optical pulses of non-thermal distributions of nuclear spins in quantum dots we investigate the effect of optical pulses applied to Bardeen-Cooper-Schrieffer (BCS) superconductors. Using time-dependent mean-field theory formulated with Anderson pseudospins, we study the electronic configurations and the energy deposited in the system by optical pulses. The pulses are included by Peierls substitution and we study short rectangular pulses as well as idealized pulses. Already a few and even a single pulse generates highly non-trivial distributions of electron expectation values which we simulate numerically and explain analytically based on the linearization of the equations of motion. These results suggest so far unexplored experimental possibilities for the optical control of superconducting states.
arXiv comment14 pages, 19 figures
References in corpus (33)
- The Magnus expansion and some of its applications
- An optically stimulated superconducting-like phase in K3C60 far above equilibrium Tc
- Historical roots of gauge invariance
- Amplitude / Higgs Modes in Condensed Matter Physics
- Synchronization in the BCS Pairing Dynamics as a Critical Phenomenon
- Transient superconductivity from electronic squeezing of optically pumped phonons
- Theory of Anderson pseudospin resonance with Higgs mode in superconductors
- Solution for the dynamics of the BCS and central spin problems
- Nonequilibrium Cooper pairing in the nonadiabatic regime
- Coupling of Higgs and Leggett modes in nonequilibrium superconductors
- Enhanced Perturbative Continuous Unitary Transformations
- Robust manipulation of electron spin coherence in an ensemble of singly charged quantum dots
- Photoinduced melting of superconductivity in the high-Tc superconductor La2-xSrxCuO4 probed by time-resolved optical and THz techniques
- Cooper pair turbulence in atomic Fermi gases
- Exact solution for quantum dynamics of a periodically-driven two-level-system
- Theory of nonequilibrium dynamics of multiband superconductors
- Collective modes in pumped unconventional superconductors with competing ground states
- Quantum model for mode locking in pulsed semiconductor quantum dots
- Non-equilibrium nuclear spin distribution function in quantum dots subject to periodic pulses
- Magnetic field dependence of the electron spin revival amplitude in periodically pulsed quantum dots
- Influence of the nuclear Zeeman effect on mode locking in pulsed semiconductor quantum dots
- Emergence of Floquet Behavior for Lattice Fermions Driven by Light Pulses
- High-order nonlinear terahertz probing of the two-band superconductor MgB: Third- and fifth-order harmonic generation
- Dynamical phases transitions in periodically driven Bardeen-Cooper-Schrieffer systems
- Impact of damping on superconducting gap oscillations induced by intense Terahertz pulses
- Nonlinear Response of Diffusive Superconductors to -electromagnetic Fields
- Spectral fingerprints of the non-linear dynamics of driven superconductors with dissipation
- Short-time dynamics in -wave superconductor with incipient bands
- Post-quench gap dynamics of two-band superconductors
- Interplay of spin mode locking and nuclei-induced frequency focusing in quantum dots
- Quantum Coherence from Periodic Driving with Laser Pulses and Decay
- Non-adiabatic dynamics in d+id-wave fermionic superfluids
- Collective excitations in competing phases in two and three dimensions