Results 31 to 40 of about 1,138,230 (99)

Stabilizer Codes and Quantum Error Correction [PDF]

, 1997
Controlling operational errors and decoherence is one of the major challenges facing the field of quantum computation and other attempts to create specified many-particle entangled states.
Daniel Gottesman, Gottesman, Daniel Eric
core   +1 more source

Universal Quantum Multi‐Qubit Entangling Gates with Auxiliary Spaces

, 2022
Universal quantum entangling gates are a crucial building block in the large-scale quantum computation and quantum communication, and it is an important task to find simple ways to implement them.
Hai‐Rui Wei, Wen‐Qiang Liu, Wei, Hai Rui, Leong‐Chuan Kwek, Liu, Wen Qiang, Kwek, Leong Chuan   +5 more
core   +1 more source

Elementary solution to the time-independent quantum navigation problem [PDF]

, 2015
A quantum navigation problem concerns the identification of a time-optimal Hamiltonian that realizes a required quantum process or task, under the influence of a prevailing ‘background’ Hamiltonian that cannot be manipulated.
Brody, Dorje C, Meier, D, Meier, David M, Brody, D   +3 more
core   +1 more source

Quantum computation and communication using electron spins in quantum dots and wires [PDF]

, 2001
The recent discovery of efficient quantum algorithms for factoring and database search has shown that quantum computing would allow to solve important problems which are intractable with conventional computers.
Burkard, Guido
core   +1 more source

Quantum Schemes for Distinguishing Quantum Gates

IET Quantum Communication
Discrimination of quantum gates is fundamental to quantum computation and information. This process involves determining whether an unknown unitary gate A belongs to one of two sets of quantum gates, X or Y. In this paper, we first introduce a scheme for
Songsong Dai
doaj   +1 more source

Benchmarking universal quantum gates via channel spectrum

Nature Communications, 2023
Noise remains the major obstacle to scalable quantum computation. Quantum benchmarking provides key information on noise properties and is an important step for developing more advanced quantum processors. However, current benchmarking methods are either
Yanwu Gu, Wei-Feng Zhuang, Xudan Chai, Dong E. Liu   +3 more
doaj   +1 more source

Implementation of Quantum Rotation Gates Using Controlled Non-Adiabatic Evolutions

, 2018
Quantum gates are the basic building blocks in the quantum circuits model. These gates can be implemented using adiabatic or non adiabatic processes.
Azeddine Messikh, Abdelrahim, Abdelrahman A. H, Sherzod Turaev, Abdelrahman A. H. Abdelrahim, Gharib Subhi Mahmoud, Mahmoud Ahmed, Gharib Subhi, Turaev, Sherzod, Az Eddine, Messikh   +7 more
core   +1 more source

Quantum CZ gates on a single gradient metasurface

Light: Science & Applications
For the requirement of quantum photonic integration in on-chip quantum information, we propose a scheme to realize quantum controlled-Z (CZ) gates through single gradient metasurface. Using its parallel beam-splitting feature, i.e., a series of connected
Qi Liu, Yu Tian, Zhaohua Tian, Yali Jia, Guixin Li, Xi-Feng Ren, Qihuang Gong, Ying Gu   +7 more
doaj   +1 more source

Super-robust nonadiabatic geometric quantum control

Physical Review Research, 2021
Nonadiabatic geometric quantum computation (NGQC) and nonadiabatic holonomic quantum computation (NHQC) have been proposed to reduce the run time of geometric quantum gates.
Bao-Jie Liu, Yuan-Sheng Wang, Man-Hong Yung   +2 more
doaj   +1 more source

Trigonometric continuous-variable gates and hybrid quantum simulations of the sine-Gordon model

Journal of High Energy Physics
Hybrid qubit-qumode quantum computing platforms provide a natural setting for simulating interacting bosonic quantum field theories. However, existing continuous-variable gate constructions rely predominantly on polynomial functions of canonical ...
Tommaso Rainaldi, Victor Ale, Matt Grau, Dmitri Kharzeev, Enrique Rico, Felix Ringer, Pubasha Shome, George Siopsis   +7 more
doaj   +1 more source