Twist-and-store entanglement in bimodal and spin-1 Bose-Einstein condensates
arXiv:2009.07372 · doi:10.1103/PhysRevA.102.053315
Abstract
A scheme for dynamical stabilization of entanglement quantified by the quantum Fisher information is analyzed numerically and analytically for bimodal and spin-1 Bose-Einstein condensates in the context of atomic interferometry. The scheme consists of twisting dynamics followed by a single rotation of a state which limits further evolution around stable center fixed points in the mean-field phase space. The resulting level of entanglement is of the order or larger than at the moment of rotation. It is demonstrated that the readout measurement of parity quantifies the level of entanglement during entire evolution.
arXiv comment16 pages, 10 figures, 1 video file
References in corpus (51)
- Quantum metrology
- Quantum metrology with nonclassical states of atomic ensembles
- Spinor Bose Condensates in Optical Traps
- Single-Atom Resolved Fluorescence Imaging of an Atomic Mott Insulator
- Quantum Coherent Atomic Tunneling between Two Trapped Bose-Einstein Condensates
- Bose-Einstein condensation with internal degrees of freedom in alkali atom gases
- Spinor Bose-Einstein condensates
- Nonlinear atom interferometer surpasses classical precision limit
- Atom chip based generation of entanglement for quantum metrology
- High-fidelity quantum logic gates using trapped-ion hyperfine qubits
- High-fidelity two-qubit quantum logic gates using trapped calcium-43 ions
- Fisher information and multiparticle entanglement
- Multipartite entanglement and high precision metrology
- Twin matter waves for interferometry beyond the classical limit
- Observation of multi-component atomic Schrödinger cat states of up to 20 qubits
- States of an Ensemble of Two-Level Atoms with Reduced Quantum Uncertainty
- Spin-Nematic Squeezed Vacuum in a Quantum Gas
- Tracking Photon Jumps with Repeated Quantum Non-Demolition Parity Measurements
- Detecting multiparticle entanglement of Dicke states
- Resonant control of spin dynamics in ultracold quantum gases by microwave dressing
- Entanglement between two spatially separated atomic modes
- Reduced back-action for phase sensitivity 10 times beyond the standard quantum limit
- Entangling Bosonic Modes via an Engineered Exchange Interaction
- Beating the classical precision limit with spin-1 Dicke state of more than 10000 atoms
- The parity operator in quantum optical metrology
- 0.75 atoms improve the clock signal of 10,000 atoms
- Not all pure entangled states are useful for sub shot-noise interferometry
- Observation of Quantum Phase Transitions with Parity-Symmetry Breaking and Hysteresis
- Quantum entanglement in spinor Bose-Einstein condensates
- Metrological Nonlinear Squeezing Parameter
- Entanglement Stabilization using Parity Detection and Real-Time Feedback in Superconducting Circuits
- Accurate Atom Counting in Mesoscopic Ensembles
- Non-equilibrium dynamics of an unstable quantum pendulum
- Random bosonic states for robust quantum metrology
- Atom correlations and spin squeezing near the Heisenberg limit: finite system size effect and decoherence
- Collective state measurement of mesoscopic ensembles with single-atom resolution
- Absorption imaging of a single atom
- Storage of spin squeezing in a two-component Bose-Einstein condensate
- Ramsey interferometry with generalized one-axis twisting echoes
- Probing spin correlations in a Bose-Einstein condensate near the single atom level
- Multipartite entanglement generation and contextuality tests using non-destructive three-qubit parity measurements
- Differential atom interferometry beyond the standard quantum limit
- Parity Detection of Propagating Microwave Fields
- Fast and optimal generation of entanglement in bosonic Josephson junctions
- Interferometric sensitivity and entanglement by scanning through quantum phase transitions in spinor Bose-Einstein condensates
- Classification of Spin-Nematic Squeezing in Spin-1 Collective Atomic Systems
- Spontanous spin squezing in a rubidium BEC
- Persistent atomic spin squeezing at the Heisenberg limit
- Optimal atomic interferometry robust to detection noise using spin-1 atomic condensates
- Efficient two-mode interferometers with spinor Bose-Einstein condensates
- Entanglement storage by classical fixed points in the two-axis countertwisting model