Manipulating intertwined orders in solids with quantum light
- URL: http://arxiv.org/abs/2005.07643v2
- Date: Fri, 30 Oct 2020 18:00:25 GMT
- Title: Manipulating intertwined orders in solids with quantum light
- Authors: Jiajun Li and Martin Eckstein
- Abstract summary: We show the vacuum fluctuations effectively enhance the charge-density-wave correlation, giving rise to a phase with entangled electronic order and photon coherence.
Our study suggests a new and generalisable pathway to control intertwined orders and create light-matter entanglement in quantum materials.
- Score: 5.967693211208606
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Intertwined orders exist ubiquitously in strongly correlated electronic
systems and lead to intriguing phenomena in quantum materials. In this paper,
we explore the unique opportunity of manipulating intertwined orders through
entangling electronic states with quantum light. Using a quantum Floquet
formalism to study the cavity-mediated interaction, we show the vacuum
fluctuations effectively enhance the charge-density-wave correlation, giving
rise to a phase with entangled electronic order and photon coherence, with
putative superradiant behaviors in the thermodynamic limit. Furthermore, upon
injecting even one single photon in the cavity, different orders, including
$s$--wave and $\eta$--paired superconductivity, can be selectively enhanced.
Our study suggests a new and generalisable pathway to control intertwined
orders and create light-matter entanglement in quantum materials. The mechanism
and methodology can be readily generalised to more complicated scenarios.
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