A prototype of quantum von Neumann architecture

DS Wang - Communications in Theoretical Physics, 2022‏ - iopscience.iop.org
A modern computer system, based on the von Neumann architecture, is a complicated
system with several interactive modular parts. It requires a thorough understanding of the …

Programmability of covariant quantum channels

M Gschwendtner, A Bluhm, A Winter - Quantum, 2021‏ - quantum-journal.org
A programmable quantum processor uses the states of a program register to specify one
element of a set of quantum channels which is applied to an input register. It is well-known …

Quantum circuit simulation of superchannels

K Wang, DS Wang - New Journal of Physics, 2023‏ - iopscience.iop.org
Quantum simulation is one of the central discipline to demonstrate the power of quantum
computing. In recent years, the theoretical framework of quantum superchannels has been …

[HTML][HTML] A survey of universal quantum von Neumann architecture

YT Liu, K Wang, YD Liu, DS Wang - Entropy, 2023‏ - mdpi.com
The existence of universal quantum computers has been theoretically well established.
However, building up a real quantum computer system not only relies on the theory of …

Experimental simulation of quantum superchannels

H Li, K Wang, S Wei, F Yang, X Chen… - New Journal of …, 2024‏ - iopscience.iop.org
Simulating quantum physical processes has been one of the major motivations for quantum
information science. Quantum channels, which are completely positive and trace preserving …

A family of quantum von Neumann architecture

DS Wang - Chinese Physics B, 2024‏ - iopscience.iop.org
We develop universal quantum computing models that form a family of quantum von
Neumann architectures, with modular units of memory, control, CPU, and internet, besides …

Persistent Ballistic Entanglement Spreading with Optimal Control in Quantum Spin Chains

Y Lu, P Shi, XH Wang, J Hu, SJ Ran - Physical Review Letters, 2024‏ - APS
Entanglement propagation provides a key routine to understand quantum many-body
dynamics in and out of equilibrium. Entanglement entropy (EE) usually approaches to a …

On quantum channel capacities: an additive refinement

DS Wang - arxiv preprint arxiv:2205.07205, 2022‏ - arxiv.org
Capacities of quantum channels are fundamental quantities in the theory of quantum
information. A desirable property is the additivity for a capacity. However, this cannot be …

Programmable Quantum Processors

MM Gschwendtner - 2021‏ - mediatum.ub.tum.de
Programmierbare Quantenprozessoren stellen ein fundamentales Modell für
Quantencomputing dar. Als solches implementieren sie Quantenkanäle mittels eines …

[CITATION][C] A prototypical model of universal quantum computer system

DS Wang - arxiv e-prints, 2021