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Fabrication and Characterization of Superconducting Resonators
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Light-Enhanced Spin Fluctuations and d-Wave Superconductivity at a Phase Boundary
Yao Wang1,2,3, Cheng-Chien Chen4, B Moritz2,5
1Department of Applied Physics, Stanford University, Stanford, California 94305, USA.
Physical Review Letters
|June 30, 2018
Summary
Photomanipulating strongly correlated materials can induce new states of matter. Light-enhanced d-wave superconductivity emerges by controlling charge order near a quantum phase boundary.
Area of Science:
- Condensed matter physics
- Quantum materials science
Background:
- Time-domain techniques offer control over material properties.
- Strongly correlated materials exhibit complex emergent phenomena.
Purpose of the Study:
- Investigate light-induced superconductivity in a Mott-Peierls system.
- Explore the role of competing orders in emergent phenomena.
Main Methods:
- Time-resolved exact diagonalization for pump dynamics.
- Numerical studies of Mott-Peierls model with competing orders.
Main Results:
- Observed light-enhanced d-wave superconductivity near a quantum phase boundary.
- Demonstrated stabilization of superconductivity by photomanipulating charge order.
- Showcased emergence of superconductivity from a subdominant equilibrium state.
Conclusions:
- Light-induced superconductivity arises from the competition between charge and superconducting orders.
- Photomanipulation offers a pathway to design novel non-equilibrium states.
- Understanding order competition is key to designing emergent quantum states.
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