Preparation of an Exciton Condensate of Photons on a 53-Qubit Quantum Computer

Abstract

Quantum computation promises an exponential speedup of certain classes of classical calculations through the preparation and manipulation of entangled quantum states. So far most molecular simulations on quantum computers, however, have been limited to small numbers of particles. Here we prepare a highly entangled state on a 53-qubit IBM quantum computer, representing 53 particles, which reveals the formation of an exciton condensate of photon particles and holes. While elusive for more than 50 years, such condensates were recently achieved for electron-hole pairs in graphene bilayers and metal chalcogenides. Our result with a photon condensate has the potential to further the exploration of this new form of condensate that may play a significant role in realizing efficient room-temperature energy transport.

References in corpus (6)

• Charge insensitive qubit design derived from the Cooper pair box
• Coplanar Waveguide Resonators for Circuit Quantum Electrodynamics
• Exciton Condensation and Perfect Coulomb Drag
• Pinning of Fermionic Occupation Numbers
• Generalized Pauli conditions on the spectra of one-electron reduced density matrices of atoms and molecules
• Experimental Data from a Quantum Computer Verifies the Generalized Pauli Exclusion Principle

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• Large Cumulant Eigenvalue as a Signature of Exciton Condensation
• Beginnings of Exciton Condensation in Coronene Analog of Graphene Double Layer
• Magnetic Phases of Spatially-Modulated Spin-1 Chains in Rydberg Excitons: Classical and Quantum Simulations
• Entangled phase of simultaneous fermion and exciton condensations realized
• Divide-and-conquer verification method for noisy intermediate-scale quantum computation
• Simultaneous fermion and exciton condensations from a model Hamiltonian
• Non-Randomness of Google's Quantum Supremacy Benchmark
• Material matters in superconducting qubits
• Quantum Simulation of Quantum Phase Transitions Using the Convex Geometry of Reduced Density Matrices
• Quantum Phase Transitions in a Model Hamiltonian Exhibiting Entangled Simultaneous Fermion-Pair and Exciton Condensations
• Quantum Simulation of Molecules without Fermionic Encoding of the Wave Function