参数驱动混合量子系统中的信息保护

IF 5.1 2区物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY

Quantum Pub Date : 2025-05-22 DOI:10.22331/q-2025-05-22-1754

Siddharth Tiwary, Harsh Sharma, Himadri Shekhar Dhar

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引用次数: 0

摘要

在由原子或自旋与空腔相互作用组成的混合量子系统中，量子信息的传递和存储受到自旋的非均匀性的不利影响，这否定了物理组分之间激发的相干交换。使用基于变分重整化群的全量子处理，我们展示了在参数驱动混合系统的状态中编码的量子信息如何被强烈地保护，以防止由于自旋系综中的非均匀性而可能产生的任何退相干。

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Protecting information in a parametrically driven hybrid quantum system

The transfer and storage of quantum information in a hybrid quantum system, consisting of an ensemble of atoms or spins interacting with a cavity, is adversely affected by the inhomogeneity of the spins, which negates the coherent exchange of excitations between the physical components. Using a full quantum treatment based on variational renormalization group, we show how quantum information encoded in the states of a parametrically driven hybrid system is strongly protected against any decoherence that may arise due to the inhomogeneity in the spin-ensemble.

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来源期刊

Quantum Physics and Astronomy-Physics and Astronomy (miscellaneous)

CiteScore

9.20

自引率

10.90%

发文量

241

审稿时长

16 weeks

期刊介绍： Quantum is an open-access peer-reviewed journal for quantum science and related fields. Quantum is non-profit and community-run: an effort by researchers and for researchers to make science more open and publishing more transparent and efficient.