Entangled phase of simultaneous fermion and exciton condensations realized
arXiv:2301.01626 · doi:10.1103/PhysRevB.105.L121105
Abstract
Fermion-exciton condensates (FECs) -- computationally and theoretically predicted states that simultaneously exhibit the character of superconducting states and exciton condensates -- are novel quantum states whose properties may involve a hybridization of superconductivity and the dissipationless flow of energy. Here, we exploit prior investigations of superconducting states and exciton condensates on quantum devices to identify a tuneable quantum state preparation entangling the wave functions of the individual condensate states. Utilizing this state preparation, we prepare a variety of FEC states on quantum computers -- realizing strongly correlated FEC states on current, noisy intermediate-scale quantum devices -- and verify the presence of the dual condensate via postmeasurement analysis. This confirmation of the previously predicted condensate state on quantum devices as well as the form of its wave function motivates further theoretical and experimental exploration of the properties, applications, and stability of FECs.
References in corpus (36)
- Quantum Computing in the NISQ era and beyond
- Magic-angle graphene superlattices: a new platform for unconventional superconductivity
- Circuit Quantum Electrodynamics: Coherent Coupling of a Single Photon to a Cooper Pair Box
- Charge insensitive qubit design derived from the Cooper pair box
- Superconductivity at 250 K in lanthanum hydride under high pressures
- Exciton-polariton condensates
- Electric Field Tunable Correlated States and Magnetic Phase Transitions in Twisted Bilayer-Bilayer Graphene
- Evidence of high-temperature exciton condensation in 2D atomic double layers
- Signatures of exciton condensation in a transition metal dichalcogenide
- Evidence for a Goldstone Mode in a Double Layer Quantum Hall System
- A simple all-microwave entangling gate for fixed-frequency superconducting qubits
- Mapping the twist angle and unconventional Landau levels in magic angle graphene
- Coplanar Waveguide Resonators for Circuit Quantum Electrodynamics
- A Dissipatively Stabilized Mott Insulator of Photons
- Counterflow measurements in strongly correlated GaAs hole bilayers: evidence for electron-hole pairing
- Vanishing Hall Resistance at High Magnetic Field in a Double Layer Two-Dimensional Electron System
- Quantum Hall Drag of Exciton Superfluid in Graphene
- Exciton Condensation and Perfect Coulomb Drag
- Observation of Quantized Hall Drag in a Strongly Correlated Bilayer Electron System
- Negative Coulomb Drag in Double Bilayer Graphene
- Photo-molecular high temperature superconductivity
- Giant Frictional Drag in Double Bilayer Graphene Heterostructures
- Carbon nanotubes as excitonic insulators
- Exciton condensate in bilayer transition metal dichalcogenides: strong coupling regime
- Supersonic rotation of a superfluid: a long-lived dynamical ring
- Imaging the coherent propagation of collective modes in the excitonic insulator candidate TaNiSe at room temperature
- Tunneling transport of unitary fermions across the superfluid transition
- Quantum signature of exciton condensation
- Preparation of an Exciton Condensate of Photons on a 53-Qubit Quantum Computer
- The interplay of phonon and exciton-mediated superconductivity in hybrid semiconductor-superconductor structures
- The quest for high critical current in applied high-temperature superconductors
- Symmetry Breaking and Convex Set Phase Diagrams for the q-state Potts Model
- Symmetry Breaking and the Geometry of Reduced Density Matrices
- Potential Coexistence of Exciton and Fermion Pair Condensations
- Cooper-Pair Condensates with Non-Classical Long-Range Order on Quantum Devices
- Simultaneous fermion and exciton condensations from a model Hamiltonian