Results 101 to 110 of about 17,439,974 (328)

Universally Robust Quantum Control

Physical Review Letters
We study the robustness of the evolution of a quantum system against small uncontrolled variations in parameters in the Hamiltonian. We show that the fidelity susceptibility, which quantifies the perturbative error to leading order, can be expressed in superoperator form and use this to derive control pulses which are robust to any class of systematic ...
Pablo M. Poggi, Gabriele De Chiara, Steve Campbell, Anthony Kiely   +3 more
openaire   +5 more sources

Quantum processors and controllers [PDF]

2003 IEEE International Workshop on Workload Characterization (IEEE Cat. No.03EX775), 2004
In this paper is presented an abstract theory of quantum processors and controllers, special kind of quantum computational network defined on a composite quantum system with two parts: the controlling and controlled subsystems. Such approach formally differs from consideration of quantum control as some external influence on a system using some set of ...
openaire   +2 more sources

Fast and robust quantum control for multimode interactions using shortcuts to adiabaticity. [PDF]

Optics Express, 2018
Adiabatic quantum control is a very important approach for quantum physics and quantum information processing (QIP). It holds the advantage with robustness to experimental imperfections but accumulates more decoherence due to the long evolution time ...
Hao Zhang, Xue-ke Song, Q. Ai, Hai-Bo Wang, Guo‐Jian Yang, Fuguo Deng   +5 more
semanticscholar   +1 more source

Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation

Advanced Functional Materials, EarlyView.
A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar, Matthew Large, Andrea Ciavatti, Laura Basiricò, Beatrice Fraboni, Paul J. Sellin, Attila J. Mozer, Marco Petasecca, Matthew J. Griffith   +8 more
wiley   +1 more source

Holographic subregion complexity in unbalanced holographic superconductors

European Physical Journal C: Particles and Fields, 2021
By using the subregion CV conjecture, we numerically investigate the behavior of the holographic subregion complexity (HSC) and compare it with the holographic entanglement entropy (HEE) in the unbalanced holographic superconductors, which indicates that
Yu Shi, Qiyuan Pan, Jiliang Jing
doaj   +1 more source

Quantum control in infinite dimensions

, 2003
Accurate control of quantum evolution is an essential requirement for quantum state engineering, laser chemistry, quantum information and quantum computing.
Ball, Gramss, Huang, Lloyd, R Vilela Mendes, Rabitz, Reed, Witold Karwowski   +7 more
core   +2 more sources

Quantum control for high-fidelity multi-qubit gates [PDF]

New Journal of Physics, 2018
Quantum control for error correction is critical for the practical use of quantum computers. We address quantum optimal control for single-shot multi-qubit gates by framing it as a feasibility problem for the Hamiltonian model that is then solved with ...
R. Spiteri, M. Schmidt, J. Ghosh, E. Zahedinejad, B. Sanders   +4 more
semanticscholar   +1 more source

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

Advanced Functional Materials, EarlyView.
Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong, William D. J. Tremlett, Lucy Hart, Beier Hu, Zhuoran Qiao, Patipan Sukpoonprom, Sarah Fearn, Edoardo Angela, Matilde Brunetta, Demosthenes C. Koutsogeorgis, Nikolaos Kalfagiannis, Davide Nodari, Martyn A. McLachlan, Piers R. F. Barnes, Artem A. Bakulin, Nicholas J. Long, Nicola Gasparini   +16 more
wiley   +1 more source

Demonstrating quantum error mitigation on logical qubits

Nature Communications
A long-standing challenge in quantum computing is developing technologies to overcome the inevitable noise in qubits. To enable meaningful applications in the early stages of fault-tolerant quantum computing, devising methods to suppress post-correction ...
Aosai Zhang, Haipeng Xie, Yu Gao, Jia-Nan Yang, Zehang Bao, Zitian Zhu, Jiachen Chen, Ning Wang, Chuanyu Zhang, Jiarun Zhong, Shibo Xu, Ke Wang, Yaozu Wu, Feitong Jin, Xuhao Zhu, Yiren Zou, Ziqi Tan, Zhengyi Cui, Fanhao Shen, Tingting Li, Yihang Han, Yiyang He, Gongyu Liu, Jiayuan Shen, Han Wang, Yanzhe Wang, Hang Dong, Jinfeng Deng, Hekang Li, Zhen Wang, Chao Song, Qiujiang Guo, Pengfei Zhang, Ying Li, H. Wang   +34 more
doaj   +1 more source

Chaotic motion of scalar particle coupling to Chern–Simons invariant in Kerr black hole spacetime

European Physical Journal C: Particles and Fields, 2021
We present firstly the equation of motion for the test scalar particle coupling to the Chern–Simons invariant in Kerr black hole spacetime by the short-wave approximation. We have analyzed the dynamical behaviors of the test coupled particles by applying
Xuan Zhou, Songbai Chen, Jiliang Jing
doaj   +1 more source