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arXiv 2309.04434quant-phcs.AIcs.LG
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用于最优反绝热量子计算的物理信息神经网络

Physics-Informed Neural Networks for an optimal counterdiabatic quantum computation

University of Valencia(瓦伦西亚大学);Kipu Quantum(Kipu量子公司)
Antonio Ferrer-Sánchez, Carlos Flores-Garrigos, Carlos Hernani-Morales, José J. Orquín-Marqués, Narendra N. Hegade, Alejandro Gomez Cadavid, Iraitz Montalban, E… 展开作者

Antonio Ferrer-Sánchez, Carlos Flores-Garrigos, Carlos Hernani-Morales, José J. Orquín-Marqués, Narendra N. Hegade, Alejandro Gomez Cadavid, Iraitz Montalban, Enrique Solano, Yolanda Vives-Gilabert, José D. Martín-Guerrero

AI总结:

本文提出利用物理信息神经网络(PINNs)解决量子电路优化中的反绝热协议问题。通过将厄米性条件与最小作用量原理嵌入神经网络,该方法摆脱了经典数值近似的限制,能够准确求解物理可观测量并获取最优反绝热项。在氢化锂等分子体系上的实验证明了该方法在量子计算算法中的有效性与实用优势。

摘要:

我们引入了一种新方法,利用物理信息神经网络(PINNs)的优势来解决由 $N_{Q}$ 量子比特系统组成的量子电路优化中的反绝热(CD)协议。主要目标是利用受物理启发的深度学习技术,准确求解量子系统内不同物理可观测量的时间演化。为实现此目标,我们将必要的物理信息嵌入底层神经网络中以有效解决问题。具体而言,我们对所有物理可观测量施加厄米性条件,并利用最小作用量原理,从而保证基于底层物理获取最合适的反绝热项。所提方法为解决 CD 驱动问题提供了可靠替代方案,摆脱了以往依赖经典数值近似的方法中常遇到的限制。该方法提供了一个通用框架,可从与问题相关的物理可观测量中获得最优结果,包括称为调度函数的时间外部参数化、涉及非绝热项的规范势或算子,以及系统能级的时间演化等。该方法的主要应用对象是 $\mathrm{H_{2}}$ 和 $\mathrm{LiH}$ 分子,分别由采用 STO-3G 基组的 2 量子比特和 4 量子比特系统表示。所呈现的结果证明,成功导出了非绝热项的理想分解,该分解通过利用 Pauli 算子的线性组合实现。这一特性为其在量子计算算法中的实际实现赋予了显著优势。

英文摘要:

We introduce a novel methodology that leverages the strength of Physics-Informed Neural Networks (PINNs) to address the counterdiabatic (CD) protocol in the optimization of quantum circuits comprised of systems with $N_{Q}$ qubits. The primary objective is to utilize physics-inspired deep learning techniques to accurately solve the time evolution of the different physical observables within the quantum system. To accomplish this objective, we embed the necessary physical information into an underlying neural network to effectively tackle the problem. In particular, we impose the hermiticity condition on all physical observables and make use of the principle of least action, guaranteeing the acquisition of the most appropriate counterdiabatic terms based on the underlying physics. The proposed approach offers a dependable alternative to address the CD driving problem, free from the constraints typically encountered in previous methodologies relying on classical numerical approximations. Our method provides a general framework to obtain optimal results from the physical observables relevant to the problem, including the external parameterization in time known as scheduling function, the gauge potential or operator involving the non-adiabatic terms, as well as the temporal evolution of the energy levels of the system, among others. The main applications of this methodology have been the $\mathrm{H_{2}}$ and $\mathrm{LiH}$ molecules, represented by a 2-qubit and 4-qubit systems employing the STO-3G basis. The presented results demonstrate the successful derivation of a desirable decomposition for the non-adiabatic terms, achieved through a linear combination utilizing Pauli operators. This attribute confers significant advantages to its practical implementation within quantum computing algorithms.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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