Results 11 to 20 of about 1,113,819 (290)

Quantum simulation for topological Euler insulators

Communications Physics, 2022
A new class of topological systems has been recently discovered, it has been dubbed the Euler insulator and can manifest in two-dimensional systems. The authors present an experimental implementation for realizing the Euler insulator with 171Yb+ ion ...
Wending Zhao, Yan-Bin Yang, Yue Jiang, Zhichao Mao, Weixuan Guo, Liyuan Qiu, Gangxi Wang, Lin Yao, Li He, Zichao Zhou, Yong Xu, Luming Duan   +11 more
doaj   +1 more source

Observation of a quantum phase transition in the quantum Rabi model with a single trapped ion

Nature Communications, 2021
Quantum phase transition occurs in many-body systems with abrupt changes in the ground state around zero temperature. Here the authors report signatures of quantum phase transition in single trapped ion that can be described using quantum Rabi model.
M.-L. Cai, Z.-D. Liu, W.-D. Zhao, Y.-K. Wu, Q.-X. Mei, Y. Jiang, L. He, X. Zhang, Z.-C. Zhou, L.-M. Duan   +9 more
doaj   +1 more source

Gaussian Quantum Information [PDF]

, 2011
The science of quantum information has arisen over the last two decades centered on the manipulation of individual quanta of information, known as quantum bits or qubits.
Arthurs, E., Bachor, H.-A., Bennett, C. H., Bergou, J., Braunstein, S. L., Bravyi, S., Cerf, N. J., Cerf, N. J., Cerf, N. J., Childs, A., Christian Weedbrook, Cover, T. M., Eisert, J., Ferraro, A., Fuchs, C. A., Furusawa, A., Gerry, C. C., Giedke, G., Grosshans, F., Guha, S., Helstrom, C. W., Holevo, A. S., Holevo, A. S., Jeffrey H. Shapiro, Jeong, H., Kok, P., Leonhardt, U., Menezes, A., Nicolas J. Cerf, Nielsen, M. A., Pati, A. K., Paulsen, V., Ralph, T. C., Ralph, T. C., Raúl García-Patrón, Renner, R., Schneier, B., Seth Lloyd, Shannon, C. E., Shannon, C. E., Shapiro, J. H., Shor, P., Stefano Pirandola, Stinespring, W. F., Timothy C. Ralph, van Assche, G., van Loock, P., Vernam, G. S., Walls, D. F.   +48 more
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Quantum Information and Entropy [PDF]

, 2006
Thermodynamic entropy is not an entirely satisfactory measure of information of a quantum state. This entropy for an unknown pure state is zero, although repeated measurements on copies of such a pure state do communicate information. In view of this, we
A. C. Elitzur, B. Misra, J. D. Bekenstein, L. Susskind, R. Penrose, Subhash Kak   +5 more
core   +3 more sources

Coherent memory for microwave photons based on long-lived mechanical excitations

npj Quantum Information, 2023
Mechanical resonators, due to their capability to host ultralong-lived phonon modes, are particularly attractive for quantum state storage and as memory elements in conjunction with quantum computing and communication networks.
Yulong Liu, Qichun Liu, Huanying Sun, Mo Chen, Shuaipeng Wang, Tiefu Li   +5 more
doaj   +1 more source

Deep quantum neural networks on a superconducting processor

Nature Communications, 2023
Deep learning and quantum computing have achieved dramatic progresses in recent years. The interplay between these two fast-growing fields gives rise to a new research frontier of quantum machine learning.
Xiaoxuan Pan, Zhide Lu, Weiting Wang, Ziyue Hua, Yifang Xu, Weikang Li, Weizhou Cai, Xuegang Li, Haiyan Wang, Yi-Pu Song, Chang-Ling Zou, Dong-Ling Deng, Luyan Sun   +12 more
doaj   +1 more source

Strong converse rates for quantum communication [PDF]

, 2015
We revisit a fundamental open problem in quantum information theory, namely whether it is possible to transmit quantum information at a rate exceeding the channel capacity if we allow for a non-vanishing probability of decoding error.
Tomamichel, Marco, Wilde, Mark M., Winter, Andreas   +2 more
core   +4 more sources

Characterizing noise correlation and enhancing coherence via qubit motion

Fundamental Research, 2021
The identification of spacial noise correlation is of critical importance in developing error-corrected quantum devices, but it has barely been studied so far. In this work, we utilize an effective method called qubit motion, to efficiently determine the
Jiaxiu Han, Zhiyuan Li, Jingning Zhang, Huikai Xu, Kehuan Linghu, Yongchao Li, Chengyao Li, Mo Chen, Zhen Yang, Junhua Wang, Teng Ma, Guangming Xue, Yirong Jin, Haifeng Yu   +13 more
doaj   +1 more source

Strategies for achieving high key rates in satellite-based QKD

npj Quantum Information, 2021
Quantum key distribution (QKD) is a pioneering quantum technology on the brink of widespread deployment. Nevertheless, the distribution of secret keys beyond a few 100 km at practical rates remains a major challenge.
Sebastian Ecker, Bo Liu, Johannes Handsteiner, Matthias Fink, Dominik Rauch, Fabian Steinlechner, Thomas Scheidl, Anton Zeilinger, Rupert Ursin   +8 more
doaj   +1 more source

Hybrid quantum information processing [PDF]

, 2014
The development of quantum information processing has traditionally followed two separate and not immediately connected lines of study. The main line has focused on the implementation of quantum bit (qubit) based protocols whereas the other line has been
Andersen, Ulrik L., Furusawa, Akira, Neergaard-Nielsen, Jonas S., van Loock, Peter   +3 more
core   +2 more sources