Accelerating Dissipative State Preparation with Adaptive Open Quantum Dynamics.

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Tác giả: Aashish A Clerk, Andrew Pocklington

Ngôn ngữ: eng

Ký hiệu phân loại: 620.1074 Engineering mechanics and materials

Thông tin xuất bản: United States : Physical review letters , 2025

Mô tả vật lý:

Bộ sưu tập: NCBI

ID: 474042

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 timescale. 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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