The pixel values of an image can be casted into a real ket of a Hilbert space using an appropriate block structured addressing. The resulting state can then be rewritten in terms of its matrix product state representation in such a way that quantum entanglement corresponds to classical correlations between different coarse-grained textures. A truncation of the MPS representation is tantamount to a compression of the original image. The resulting algorithm can be improved adding a discrete Fourier transform preprocessing and a further entropic lossless compression.
Entanglement-assisted multi-aperture pulse-compression radar for angle resolving detection
纠缠已经被称为提高目标检测,尽管它被破坏的损失噪声传播。最近,[Phys. Rev. Lett. 128,010501(2022)]提出了一种量子脉冲压缩雷达,以将纠缠的好处扩展到目标距离估计。在雷达应用中,目标的许多其他方面都是令人感兴趣的,包括角度、速度和截面。在这项研究中,我们提出了一种双接收器雷达方案,采用高时间带宽积微波脉冲纠缠与预共享的参考信号在接收器上,调查一个遥远的物体的方向,并表明方向分辨能力显着提高纠缠,相比其经典的对应在相同的参数设置。我们确定这种量子雷达的适用场景是短距离和高频率,这使得纠缠的好处在一个合理的集成时间。
KARIPAP: Quantum-Inspired Tensor Network Compression of Large Language Models Using Infinite Projected Entangled Pair States and Tensor Renormalization Group
Institute of Mathematical Research, University Putra Malaysia(马来西亚博特拉大学数学研究所)
Harvard University(哈佛大学);RIKEN Center for Quantum Computing (RQC)(理化学研究所量子计算中心);Kyoto University(京都大学);RIKEN Pioneering Research Institute (PRI)(理化学研究所开创性研究本部)
本文确定了短程相互作用量子动力学低秩表示的最优秩,静态与驱动情形分别满足对数修正的 t 和 t^{2/3} 标度,并给出显式 MPO 算法,揭示了静态与驱动纠缠谱的差异。