Protocol for nonlinear state discrimination in rotating condensate

• URL: http://arxiv.org/abs/2404.16288v2
• Date: Fri, 21 Jun 2024 13:56:44 GMT
• Title: Protocol for nonlinear state discrimination in rotating condensate
• Authors: Michael R. Geller,
• Abstract summary: mean field dynamics enables quantum information processing operations that are impossible in linear one-particle quantum mechanics. A nice feature of the protocol is that only readout of individual quantized circulation states (not superpositions) is required.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• 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.

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