Protocol for nonlinear state discrimination in rotating condensate
arXiv:2404.16288 · doi:10.1002/qute.202300431
Abstract
Nonlinear mean field dynamics enables quantum information processing operations that are impossible in linear one-particle quantum mechanics. In this approach, a register of bosonic qubits (such as neutral atoms or polaritons) is initialized into a symmetric product state through condensation, then subsequently controlled by varying the qubit-qubit interaction. We propose an experimental implementation of quantum state discrimination, an important subroutine in quantum computation, with a toroidal Bose-Einstein condensate. The condensed bosons here are atoms, each in the same superposition of angular momenta 0 and 1, encoding a qubit. A nice feature of the protocol is that only readout of individual quantized circulation states (not superpositions) is required.
References in corpus (10)
- Suppressing quantum errors by scaling a surface code logical qubit
- Demonstration of multi-qubit entanglement and algorithms on a programmable neutral atom quantum computer
- Observation of persistent flow of a Bose-Einstein condensate in a toroidal trap
- Quantum state discrimination and its applications
- Roadmap on Atomtronics: State of the art and perspective
- The Vortex Phase Qubit: Generating Arbitrary, Counter-Rotating, Coherent Superpositions in Bose-Einstein Condensates via Optical Angular Momentum Beams
- Atomtronic circuits: from many-body physics to quantum technologies
- Macroscopic quantum information processing using spin coherent states
- Bose-Einstein condensates in toroidal traps: instabilities, swallow-tail loops, and self-trapping
- Quantum Dynamics with Mean Field Interactions: a New Approach