Scalable $W$-type entanglement resource in neutral-atom arrays with Rydberg-dressed resonant dipole-dipole interaction

Abstract

While the Rydberg-blockade regime provides the natural setting for creating $W$-type entanglement with cold neutral atoms, it is demonstrated here that a scalable entanglement resource of this type can even be obtained under completely different physical circumstances. To be more precise, a special instance of twisted $W$ states -- namely, $\pi$-twisted ones -- can be engineered in one-dimensional arrays of cold neutral atoms with Rydberg-dressed resonant dipole-dipole interaction. In particular, it is shown here that this is possible even when a (dressed) Rydberg excitation is coupled to the motional degrees of freedom of atoms in their respective, nearly-harmonic optical-dipole microtraps, which are quantized into dispersionless (zero-dimensional) bosons. For a specially chosen ("sweet-spot") detuning of the off-resonant dressing lasers from the relevant internal atomic transitions, the desired $\pi$-twisted $W$ state of Rydberg-dressed qubits is the ground state of the effective excitation -- boson Hamiltonian of the system in a broad window of the relevant parameters. Being at the same time separated from the other eigenstates by a gap equal to the single-boson energy, this $W$ state can be prepared using a Rabi-type driving protocol. The corresponding preparation times are independent of the system size and several orders of magnitude shorter than the effective lifetimes of the relevant atomic states.

arXiv commentfinal, published version

References in corpus (75)

• Three qubits can be entangled in two inequivalent ways
• Quantum information with Rydberg atoms
• Probing many-body dynamics on a 51-atom quantum simulator
• Dipole Blockade and Quantum Information Processing in Mesoscopic Atomic Ensembles
• Many-Body Physics with Individually-Controlled Rydberg Atoms
• Conditions for a class of entanglement transformations
• Observation of Rydberg blockade between two atoms
• An atom-by-atom assembler of defect-free arbitrary 2d atomic arrays
• Demonstration of a neutral atom controlled-NOT quantum gate
• Observation of collective excitation of two individual atoms in the Rydberg blockade regime
• Entanglement of two individual neutral atoms using Rydberg blockade
• Quantum computing with atomic qubits and Rydberg interactions: Progress and challenges
• Generation and manipulation of Schrödinger cat states in Rydberg atom arrays
• Local Blockade of Rydberg Excitation in an Ultracold Gas
• Synthetic three-dimensional atomic structures assembled atom by atom
• High-fidelity control and entanglement of Rydberg atom qubits
• Suppression of Excitation and Spectral Broadening Induced by Interactions in a Cold Gas of Rydberg Atoms
• Photon-Photon Interactions via Rydberg Blockade
• Rydberg atom quantum technologies
• Entangling Atomic Spins with a Strong Rydberg-Dressed Interaction
• Coherent Excitation Transfer in a Spin Chain of Three Rydberg Atoms
• Cooling a single atom in an optical tweezer to its quantum ground state
• Natural two-qubit gate for quantum computation using the XY interaction
• Antiblockade in Rydberg excitation of an ultracold lattice gas
• Two-dimensional transport and transfer of a single atomic qubit in optical tweezers
• Defect-free assembly of 2D clusters of more than 100 single-atom quantum systems
• Tutorial: Calculation of Rydberg interaction potentials
• Quantum simulation of a system with competing two- and three-body interactions
• Efficient multiparticle entanglement via asymmetric Rydberg blockade
• Rydberg dressing: Understanding of collective many-body effects and implications for experiments
• Entangled webs: Tight bound for symmetric sharing of entanglement
• High-fidelity Rydberg-blockade entangling gate using shaped, analytic pulses
• Enhanced atom-by-atom assembly of arbitrary tweezers arrays
• Grey-molasses optical-tweezer loading: Controlling collisions for scaling atom-array assembly
• Sub-microsecond entangling gate between trapped ions via Rydberg interaction
• Two-qubit entangling gates within arbitrarily long chains of trapped ions
• An elementary optical gate for expanding entanglement web
• Realization of a density-dependent Peierls phase in a synthetic, spin-orbit coupled Rydberg system
• Anonymous transmission in a noisy quantum network using the W state
• Rydberg-dressing of atoms in optical lattices
• Fast preparation of W states with superconducting quantum interference devices by using dressed states
• Robust Mølmer-Sørensen gate for neutral atoms using rapid adiabatic Rydberg dressing
• Non-adiabatic motional effects and dissipative blockade for Rydberg atoms excited from optical lattices or microtraps
• Binding potentials and interaction gates between microwave-dressed Rydberg atoms
• Excitation transport through Rydberg dressing
• Motion of Rydberg atoms induced by resonant dipole-dipole interactions
• A non-equilibrium quantum many-body Rydberg atom engine
• Wave Packet Echoes in the Motion of Trapped Atoms
• Realization of a Rydberg-dressed Ramsey interferometer and electrometer
• Quantum simulation of small-polaron formation with trapped ions
• Fast, Accurate, and Realizable Two-Qubit Entangling Gates by Quantum Interference in Detuned Rabi Cycles of Rydberg Atoms
• A single strontium Rydberg ion confined in a Paul trap
• Transmon-based simulator of nonlocal electron-phonon coupling: A platform for observing sharp small-polaron transitions
• Doppler-resilient ground-Rydberg transition and its application in high-fidelity entangling gates with neutral atoms
• Suppress motional dephasing of ground-Rydberg transition for high-fidelity quantum control with neutral atoms
• Bayesian optimal control of GHZ states in Rydberg lattices
• Boson-mediated quantum spin simulators in transverse fields: XY model and spin-boson entanglement
• Large Energy Superpositions via Rydberg Dressing
• Quantum-entanglement aspects of polaron systems
• Bare-Excitation Ground State of a Spinless-Fermion -- Boson Model and $W$-State Engineering in an Array of Superconducting Qubits and Resonators
• Polaronic signatures and spectral properties of graphene antidot lattices
• Creation and transfer of non-classical states of motion using Rydberg dressing of atoms in a lattice
• Nano-friction in cavity quantum electrodynamics
• Electron-phonon coupling in graphene antidot lattices: an indication of polaronic behavior
• Entanglement-spectrum characterization of ground-state nonanalyticities in coupled excitation-phonon models
• Generation of Bell, W and GHZ states via exceptional points in non-Hermitian quantum spin systems
• Sub-ms, nondestructive, time-resolved quantum-state readout of a single, trapped neutral atom
• Generation of n-qubit W states using Spin Torque
• Non-adiabatic quantum state preparation and quantum state transport in chains of Rydberg atoms
• Simulating polaron biophysics with Rydberg atoms
• Quantum dynamics of the small-polaron formation in a superconducting analog simulator
• Polaron transformations in the realistic model of the strongly correlated electron system
• Deterministic Many-Resonator W Entanglement of Nearly Arbitrary Microwave States via Attractive Bose-Hubbard Simulation
• Extended coherently delocalized states in a frozen Rydberg gas
• Generation and decoherence of soliton spatial superposition states

Cited by in corpus (21)

• Quantum logic and entanglement by neutral Rydberg atoms: methods and fidelity
• Conversion from $W$ to Greenberger-Horne-Zeilinger states in the Rydberg-blockade regime of neutral-atom systems: Dynamical-symmetry-based approach
• Dicke-state preparation through global transverse control of Ising-coupled qubits
• Generating Bell states and $N$-partite $W$ states of long-distance qubits in superconducting waveguide QED
• Dynamical generation of chiral $W$ and Greenberger-Horne-Zeilinger states in laser-controlled Rydberg-atom trimers
• Quantum-brachistochrone approach to the conversion from $W$ to Greenberger-Horne-Zeilinger states for Rydberg-atom qubits
• Interconversion of $W$ and Greenberger-Horne-Zeilinger states for Ising-coupled qubits with transverse global control
• Unified generation and fast emission of arbitrary single-photon multimode $W$ states
• Robust topological feature against non-Hermiticity in Jaynes-Cummings Model
• Coherent Atom Transport via Enhanced Shortcuts to Adiabaticity: Double-Well Optical Lattice
• Quantum gates with weak van der Waals interactions of neutral Rydberg atoms
• Spin squeezing in internal bosonic Josephson junctions via enhanced shortcuts to adiabaticity
• Spin Winding and Topological Nature of Transitions in Jaynes-Cummings Model with Stark Non-linear Coupling
• Quantum Fisher information and polaron picture for identification of transition coupling in quantum Rabi model
• Twist-and-turn dynamics of spin squeezing in bosonic Josephson junctions: Enhanced shortcuts-to-adiabaticity approach
• Mixed-state phase transitions in spin-Holstein models
• Entangling distant systems via universal nonadiabatic passage
• Spectral features of polaronic excitations in a superconducting analog simulator
• Digital Quantum Simulation of Scalar Yukawa Coupling
• Harnessing subspace controllability: Dynamical generation of Dicke states in Heisenberg-coupled qubit arrays with a single local control
• Single-atom transport in optical conveyor belts: Enhanced shortcuts-to-adiabaticity approach