Touil Akram, Deffner Sebastian
Department of Physics, University of Maryland, Baltimore County, Baltimore, MD 21250, USA.
Instituto de Física 'Gleb Wataghin', Universidade Estadual de Campinas, Campinas, São Paulo 13083-859, Brazil.
Entropy (Basel). 2021 Nov 9;23(11):1479. doi: 10.3390/e23111479.
Envariance is a symmetry exhibited by correlated quantum systems. Inspired by this "quantum fact of life," we propose a novel method for shortcuts to adiabaticity, which enables the system to evolve through the adiabatic manifold at all times, solely by controlling the environment. As the main results, we construct the unique form of the driving on the environment that enables such dynamics, for a family of composite states of arbitrary dimension. We compare the cost of this environment-assisted technique with that of counterdiabatic driving, and we illustrate our results for a two-qubit model.
环境不变性是相关量子系统所展现出的一种对称性。受这种“量子生活事实”的启发，我们提出了一种实现绝热捷径的新方法，该方法能使系统始终仅通过控制环境就在绝热流形上演化。作为主要成果，对于任意维度的一族复合态，我们构建了能实现这种动力学的环境驱动的独特形式。我们将这种环境辅助技术的代价与逆绝热驱动的代价进行了比较，并针对一个两量子比特模型展示了我们的结果。
