Cavity induced chiral edge currents and spontaneous magnetization in two-dimensional electron systems
arXiv:2204.13759 · doi:10.1103/PhysRevB.106.205114
Abstract
We consider a laterally confined two-dimensional electron gas (2DEG), placed inside a gyrotropic cavity. Splitting of the circularly polarized electromagnetic modes leads to the emergence of the ground state spontaneous magnetization, anomalous Hall effect and chiral edge currents in 2DEG. We examine the dependence of the magnetization and edge current density on the system size for two particular cases of the confining potential: infinite wall and parabolic potentials. We show that paramagnetic and diamagnetic contributions to the edge currents have qualitatively different dependence on the system size. These findings pave the route to the design quantum electrodynamic engineering of the material properties of the mesoscopic electron systems.
References in corpus (23)
- Ultrastrong coupling between light and matter
- On the Integrability of the Rabi Model
- Cavity-controlled chemistry in molecular ensembles
- Spin current and polarization in impure 2D electron systems with spin-orbit coupling
- Quantum Phase Transition and Universal Dynamics in the Rabi model
- Quantum Electrodynamical Density-Functional Theory: Bridging Quantum Optics and Electronic-Structure Theory
- Is there a no-go theorem for superradiant quantum phase transitions in cavity and circuit QED ?
- Cavity Quantum Materials
- Cavity-mediated electron-photon superconductivity
- Time-dependent density functional theory for many-electron systems interacting with cavity photons
- Spin-Hall effect in a disordered 2D electron-system
- Ab-initio non-relativistic quantum electrodynamics: Bridging quantum chemistry and quantum optics from weak to strong coupling
- Quantum Electrodynamic Control of Matter: Cavity-Enhanced Ferroelectric Phase Transition
- Cavity Quantum Eliashberg Enhancement of Superconductivity
- Cavity QED of Strongly Correlated Electron Systems: A No-go Theorem for Photon Condensation
- Can ultrastrong coupling change ground state chemical reactions?
- Cavity Quantum-Electrodynamical Chern Insulator: Route Towards Light-Induced Quantized Anomalous Hall Effect in Graphene
- Superradiant phase transition in electronic systems and emergent topological phases
- The Free Electron Gas in Cavity Quantum Electrodynamics
- Manipulating intertwined orders in solids with quantum light
- Thermodynamics of ultrastrongly coupled light-matter systems
- Effective theory of lattice electrons strongly coupled to quantum electromagnetic fields
- Vacuum anomalous Hall effect in gyrotropic cavity
Cited by in corpus (5)
- First-order photon condensation in magnetic cavities: A two-leg ladder model
- Cavity-Vacuum-Induced Chiral Spin Liquids in Kagome Lattices: Tuning and Probing Topological Quantum Phases via Cavity Quantum Electrodynamics
- Chiral TeraHertz surface plasmonics
- Angular Momentum-Dependent Spectral Shift in Chiral Vacuum Cavities
- Spontaneous Symmetry Breaking of Cavity Vacuum and Emergent Gyrotropic Effects in Embedded moiré Superlattices