Photon Condensation and Enhanced Magnetism in Cavity QED

Abstract

A system of magnetic molecules coupled to microwave cavities ($LC$ resonators) undergoes the equilibrium superradiant phase transition. The transition is experimentally observable. The effect of the coupling is first illustrated by the vacuum-induced ferromagnetic order in a quantum Ising model and then by the modification of the magnetic phase diagram of $\mathrm{F}{\mathrm{e}}_8$ dipolar crystals, exemplifying the cooperation between intrinsic and photon-induced spin-spin interactions. Finally, a transmission experiment is shown to resolve the transition, measuring the quantum electrodynamical control of magnetism.

References in corpus (46)

• Circuit Quantum Electrodynamics: Coherent Coupling of a Single Photon to a Cooper Pair Box
• Circuit Quantum Electrodynamics
• Hybrid quantum circuits: Superconducting circuits interacting with other quantum systems
• Chaos and the Quantum Phase Transition in the Dicke Model
• Strong Coupling of a Spin Ensemble to a Superconducting Resonator
• Conductivity in organic semiconductors hybridized with the vacuum field
• High cooperativity coupling of electron-spin ensembles to superconducting cavities
• Molecular Spin Qudits for Quantum Algorithms
• Extraordinary exciton conductance induced by strong coupling
• Introduction to the Dicke model: from equilibrium to nonequilibrium, and vice versa
• Is there a no-go theorem for superradiant quantum phase transitions in cavity and circuit QED ?
• Cavity enhanced transport of excitons
• Input-output theory of cavities in the ultra-strong coupling regime: the case of a time-independent vacuum Rabi frequency
• Markovian master equations for quantum thermal machines: local vs global approach
• Cavity-mediated electron-photon superconductivity
• Superradiant Phase Transitions and the Standard Description of Circuit QED
• Testing the validity of the local and global GKLS master equations on an exactly solvable model
• Quantum Electrodynamic Control of Matter: Cavity-Enhanced Ferroelectric Phase Transition
• Cavity Quantum Eliashberg Enhancement of Superconductivity
• Cavity quantum electrodynamics in the non-perturbative regime
• Cavity QED of Strongly Correlated Electron Systems: A No-go Theorem for Photon Condensation
• Theory of Photon Condensation in a Spatially-Varying Electromagnetic Field
• Elimination of the A-square problem from cavity QED
• A scalable architecture for quantum computation with molecular nanomagnets
• Rare earth spin ensemble magnetically coupled to a superconducting resonator
• Coupling single molecule magnets to quantum circuits
• Superradiant phase transition in electronic systems and emergent topological phases
• Ordering of dipolar Ising crystals
• Single-Chain Magnets
• The Free Electron Gas in Cavity Quantum Electrodynamics
• Enhanced molecular spin-photon coupling at superconducting nanoconstrictions
• Rashba cavity QED: a route towards the superradiant quantum phase transition
• Drude weight, cyclotron resonance, and the Dicke model of graphene cavity QED
• Cavity QED of the graphene cyclotron transition
• Gauge invariance of the Dicke and Hopfield models
• Strong coupling of microwave photons to antiferromagnetic fluctuations in an organic magnet
• Long-range ferromagnetic dipolar ordering of high-spin molecular clusters
• 3D Cavity quantum electrodynamics with a rare-earth spin ensemble
• Thermodynamics of ultrastrongly coupled light-matter systems
• Uniqueness of the Phase Transition in Many-Dipole Cavity Quantum Electrodynamical Systems
• Magnetic dipolar ordering and quantum phase transition in Fe8 molecular magnet
• Long-range ferromagnetism of Mn12 acetate single-molecule magnets under a transverse magnetic field
• The Vacua of Dipolar Cavity Quantum Electrodynamics
• Realization of random-field dipolar Ising ferromagnetism in a molecular magnet
• Quantitative modeling of superconducting planar resonators with improved field homogeneity for electron spin resonance
• Magnonic Superradiant Phase Transition

Cited by in corpus (29)

• Cavity Quantum Materials
• A perspective on scaling up quantum computation with molecular spins
• The Free Electron Gas in Cavity Quantum Electrodynamics
• Ultrastrong Magnon-Photon Coupling Achieved by Magnetic Films in Contact with Superconducting Resonators
• Effective theory for matter in non-perturbative cavity QED
• A non-perturbative no-go theorem for photon condensation in approximate models
• First-order photon condensation in magnetic cavities: A two-leg ladder model
• Nonperturbative cavity quantum electrodynamics: is the Jaynes-Cummings model still relevant?
• Vacuum-Induced Symmetry Breaking of Chiral Enantiomer Formation in Chemical Reactions
• Cavity magnonics with easy-axis ferromagnet: Critically enhanced magnon squeezing and light-matter interaction
• Cavity engineering of Hubbard $U$ via phonon polaritons
• Photon condensation, Van Vleck paramagnetism, and chiral cavities
• Relaxation breakdown and resonant tunneling in ultrastrong-coupling cavity QED
• Exact solution for quantum strong long-range models via a generalized Hubbard-Stratonovich transformation
• Superradiant Quantum Phase transition for Landau Polaritons with Rashba and Zeeman couplings
• Linear response theory for cavity QED materials at arbitrary light-matter coupling strengths
• Coherent Plasma in a Lattice
• Quantum Phase Transitions in Many-Dipole Light-Matter Systems
• Electrostatic nature of cavity-mediated interactions between low-energy matter excitations
• Bound polariton states in the Dicke-Ising model
• One-dimensional electron localization in semiconductors coupled to electromagnetic cavities
• Theory of photon condensation in an arbitrary gauge condensed matter cavity model
• Excitonic enhancement of cavity-mediated interactions in a two-band Hubbard model
• One-dimensional extended Hubbard model coupled with an optical cavity
• Diverging entanglement of critical magnons in easy-axis antiferromagnets
• General theory of cavity-mediated interactions between low-energy matter excitations
• Waveguide quantum electrodynamics at the onset of spin-spin correlations
• Superradiant Quantum Phase Transition in Open Systems: System-Bath Interaction at the Critical Point
• Cavity QED Control of Quantum Hall Stripes