Optical enhancement of superconductivity via targeted destruction of charge density waves

@article{Dehghani2020OpticalEO,
  title={Optical enhancement of superconductivity via targeted destruction of charge density waves},
  author={Hossein Dehghani and Zachary M. Raines and Victor M. Galitski and Mohammad Hafezi},
  journal={Physical Review B},
  year={2020}
}
It has been experimentally established that the occurrence of charge density waves is a common feature of various under-doped cuprate superconducting compounds. The observed states, which are often found in the form of bond density waves (BDW), often occur in a temperature regime immediately above the superconducting transition temperature. Motivated by recent optical experiments on superconducting materials, where it has been shown that optical irradiation can transiently improve the… 

Figures from this paper

Photomolecular High-Temperature Superconductivity
Superconductivity in organic conductors is often tuned by the application of chemical or external pressure. With this type of tuning, orbital overlaps and electronic bandwidths are manipulated,
Signatures of the Higgs mode in transport through a normal-metal–superconductor junction
A superconductor subject to electromagnetic irradiation in the terahertz range can show amplitude oscillations of its order parameter. However, coupling this so-called Higgs mode to the charge
Periodic dynamics in superconductors induced by an impulsive optical quench
Pavel E. Dolgirev, ∗ Alfred Zong, Marios H. Michael, Jonathan B. Curtis, 3 Daniel Podolsky, Andrea Cavalleri, 6 and Eugene Demler Department of Physics, Harvard University, Cambridge, Massachusetts
Cavity engineering of Hubbard U via phonon polaritons
Pump-probe experiments have suggested the possibility to control electronic correlations by driving infrared-active (IR-active) phonons with resonant midinfrared laser pulses. In this work we study
Light-induced topological superconductivity via Floquet interaction engineering
Hossein Dehghani ,1,2 Mohammad Hafezi,1,2 and Pouyan Ghaemi3,4 1Joint Quantum Institute, College Park, Maryland 20742, USA 2The Institute for Research in Electronics and Applied Physics, University
Polariton panorama
Abstract In this brief review, we summarize and elaborate on some of the nomenclature of polaritonic phenomena and systems as they appear in the literature on quantum materials and quantum optics.

References

SHOWING 1-10 OF 110 REFERENCES
Competition of Superconductivity and Charge Density Waves in Cuprates: Recent Evidence and Interpretation
Explicit and implicit experimental evidence for charge density wave (CDW) presence in high- superconducting oxides is analyzed. The theory of CDW superconductors is presented. It is shown that the
A Spin Fluctuation Model for d-Wave Superconductivity
The identification of the microscopic mechanisms responsible for superconductivity and the nature of the superconducting pairing state continues to represent one of the most exciting theoretical
Optically enhanced coherent transport in YBa2Cu3O6.5 by ultrafast redistribution of interlayer coupling.
TLDR
It is shown that excitation of large-amplitude apical oxygen distortions in the cuprate superconductor YBa2Cu3O6.5 promotes highly unconventional electronic properties and could lead to new strategies to enhance superconductivity in steady state.
Theory of light-enhanced phonon-mediated superconductivity
We investigate the dynamics of a phonon-mediated superconductor driven out of equilibrium. The electronic hopping amplitude is ramped down in time, resulting in an increased electronic density of
Enhancement of super-exchange pairing in the periodically-driven Hubbard model
Recent experiments performed on cuprates and alkali-doped fullerides have demonstrated that key signatures of superconductivity can be induced above the equilibrium critical temperature by optical
Light-Enhanced Spin Fluctuations and d-Wave Superconductivity at a Phase Boundary.
TLDR
This work provides an interpretation of light-induced superconductivity from the perspective of order competition and offers a promising approach for designing novel emergent states out of equilibrium.
Emergence of charge order from the vortex state of a high-temperature superconductor.
TLDR
It is shown using nuclear magnetic resonance that charge order in YBa2Cu3Oy has maximum strength inside the superconducting dome, similar to compounds of the La2-x(Sr,Ba)xCuO4 family, and that the overlap of halos of incipient charge order around vortex cores can explain the threshold magnetic field at which long-range charge order emerges.
Wavelength-dependent optical enhancement of superconducting interlayer coupling in La1.885Ba0.115CuO4
We analyze the pump wavelength dependence for the photo-induced enhancement of interlayer coupling in La1.885Ba0.115CuO4, which is promoted by optical melting of the stripe order. In the equilibrium
Possible Light-Induced Superconductivity in a Strongly Correlated Electron System
We present a theoretical study of possible light-induced superconducting phase coherence in a solid state system after an ultrafast optical excitation. We investigate the buildup of superconducting
Enhancement of superconductivity via periodic modulation in a three-dimensional model of cuprates
Recent experiments in the cuprates have seen evidence of a transient superconducting state upon optical excitation polarized along the c-axis [R. Mankowsky et al., Nature 516, 71 (2014)]. Motivated
...
...