Accelerating Dissipative State Preparation with Adaptive Open Quantum Dynamics

• URL: http://arxiv.org/abs/2409.06012v1
• Date: Mon, 9 Sep 2024 19:11:07 GMT
• Title: Accelerating Dissipative State Preparation with Adaptive Open Quantum Dynamics
• Authors: Andrew Pocklington, Aashish A. Clerk,
• Abstract summary: A variety of dissipative state preparation schemes suffer from a basic time-entanglement tradeoff. We show how a minimal kind of adaptive dynamics can be used to completely circumvent this tradeoff.
• Score: 0.0
• License: http://creativecommons.org/licenses/by-sa/4.0/
• Abstract: A wide variety of dissipative state preparation schemes suffer from a basic time-entanglement tradeoff: the more entangled the steady state, the slower the relaxation to the steady state. Here, we show how a minimal kind of adaptive dynamics can be used to completely circumvent this tradeoff, and allow the dissipative stabilization of maximally entangled states with a finite time-scale. Our approach takes inspiration from simple fermionic stabilization schemes, which surprisingly are immune to entanglement-induced slowdown. We describe schemes for accelerated stabilization of many-body entangled qubit states (including spin squeezed states), both in the form of discretized Floquet circuits, as well as continuous time dissipative dynamics. Our ideas are compatible with a number of experimental platforms.

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