Search Results - "npj quantum information"

Variational ansatz-based quantum simulation of imaginary time evolution by McArdle, Sam, Jones, Tyson, Endo, Suguru, Li, Ying, Benjamin, Simon C., Yuan, Xiao

“…Imaginary time evolution is a powerful tool for studying quantum systems. While it is possible to simulate with a classical computer, the time and memory…”
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Towards practical quantum computers: transmon qubit with a lifetime approaching 0.5 milliseconds by Wang, Chenlu, Li, Xuegang, Xu, Huikai, Li, Zhiyuan, Wang, Junhua, Yang, Zhen, Mi, Zhenyu, Liang, Xuehui, Su, Tang, Yang, Chuhong, Wang, Guangyue, Wang, Wenyan, Li, Yongchao, Chen, Mo, Li, Chengyao, Linghu, Kehuan, Han, Jiaxiu, Zhang, Yingshan, Feng, Yulong, Song, Yu, Ma, Teng, Zhang, Jingning, Wang, Ruixia, Zhao, Peng, Liu, Weiyang, Xue, Guangming, Jin, Yirong, Yu, Haifeng

“…Here we report a breakthrough in the fabrication of a long lifetime transmon qubit. We use tantalum films as the base superconductor. By using a dry etching…”
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Quantum Generative Adversarial Networks for learning and loading random distributions by Zoufal, Christa, Lucchi, Aurélien, Woerner, Stefan

“…Quantum algorithms have the potential to outperform their classical counterparts in a variety of tasks. The realization of the advantage often requires the…”
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Ground-state energy estimation of the water molecule on a trapped-ion quantum computer by Nam, Yunseong, Chen, Jwo-Sy, Pisenti, Neal C., Wright, Kenneth, Delaney, Conor, Maslov, Dmitri, Brown, Kenneth R., Allen, Stewart, Amini, Jason M., Apisdorf, Joel, Beck, Kristin M., Blinov, Aleksey, Chaplin, Vandiver, Chmielewski, Mika, Collins, Coleman, Debnath, Shantanu, Hudek, Kai M., Ducore, Andrew M., Keesan, Matthew, Kreikemeier, Sarah M., Mizrahi, Jonathan, Solomon, Phil, Williams, Mike, Wong-Campos, Jaime David, Moehring, David, Monroe, Christopher, Kim, Jungsang

“…Quantum computing leverages the quantum resources of superposition and entanglement to efficiently solve computational problems considered intractable for…”
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Efficient and noise resilient measurements for quantum chemistry on near-term quantum computers by Huggins, William J., McClean, Jarrod R., Rubin, Nicholas C., Jiang, Zhang, Wiebe, Nathan, Whaley, K. Birgitta, Babbush, Ryan

“…Variational algorithms are a promising paradigm for utilizing near-term quantum devices for modeling electronic states of molecular systems. However, previous…”
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Variational fast forwarding for quantum simulation beyond the coherence time by Cîrstoiu, Cristina, Holmes, Zoë, Iosue, Joseph, Cincio, Lukasz, Coles, Patrick J., Sornborger, Andrew

“…Trotterization-based, iterative approaches to quantum simulation (QS) are restricted to simulation times less than the coherence time of the quantum computer…”
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Efficient symmetry-preserving state preparation circuits for the variational quantum eigensolver algorithm by Gard, Bryan T., Zhu, Linghua, Barron, George S., Mayhall, Nicholas J., Economou, Sophia E., Barnes, Edwin

“…The variational quantum eigensolver is one of the most promising approaches for performing chemistry simulations using noisy intermediate-scale quantum (NISQ)…”
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Universal quantum control through deep reinforcement learning by Niu, Murphy Yuezhen, Boixo, Sergio, Smelyanskiy, Vadim N., Neven, Hartmut

“…Emerging reinforcement learning techniques using deep neural networks have shown great promise in control optimization. They harness non-local regularities of…”
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Decoherence benchmarking of superconducting qubits by Burnett, Jonathan J., Bengtsson, Andreas, Scigliuzzo, Marco, Niepce, David, Kudra, Marina, Delsing, Per, Bylander, Jonas

“…We benchmark the decoherence of superconducting transmon qubits to examine the temporal stability of energy relaxation, dephasing, and qubit transition…”
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Simulating quantum many-body dynamics on a current digital quantum computer by Smith, Adam, Kim, M. S., Pollmann, Frank, Knolle, Johannes

“…Universal quantum computers are potentially an ideal setting for simulating many-body quantum dynamics that is out of reach for classical digital computers. We…”
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Interfacing spin qubits in quantum dots and donors—hot, dense, and coherent by Vandersypen, L. M. K., Bluhm, H., Clarke, J. S., Dzurak, A. S., Ishihara, R., Morello, A., Reilly, D. J., Schreiber, L. R., Veldhorst, M.

“…Semiconductor spins are one of the few qubit realizations that remain a serious candidate for the implementation of large-scale quantum circuits. Excellent…”
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A generative modeling approach for benchmarking and training shallow quantum circuits by Benedetti, Marcello, Garcia-Pintos, Delfina, Perdomo, Oscar, Leyton-Ortega, Vicente, Nam, Yunseong, Perdomo-Ortiz, Alejandro

“…Hybrid quantum-classical algorithms provide ways to use noisy intermediate-scale quantum computers for practical applications. Expanding the portfolio of such…”
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Routing entanglement in the quantum internet by Pant, Mihir, Krovi, Hari, Towsley, Don, Tassiulas, Leandros, Jiang, Liang, Basu, Prithwish, Englund, Dirk, Guha, Saikat

“…Remote quantum entanglement can enable numerous applications including distributed quantum computation, secure communication, and precision sensing. We…”
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Symmetry-resolved entanglement detection using partial transpose moments by Neven, Antoine, Carrasco, Jose, Vitale, Vittorio, Kokail, Christian, Elben, Andreas, Dalmonte, Marcello, Calabrese, Pasquale, Zoller, Peter, Vermersch, Benoȋt, Kueng, Richard, Kraus, Barbara

“…We propose an ordered set of experimentally accessible conditions for detecting entanglement in mixed states. The k -th condition involves comparing moments of…”
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Hierarchical quantum classifiers by Grant, Edward, Benedetti, Marcello, Cao, Shuxiang, Hallam, Andrew, Lockhart, Joshua, Stojevic, Vid, Green, Andrew G., Severini, Simone

“…Quantum circuits with hierarchical structure have been used to perform binary classification of classical data encoded in a quantum state. We demonstrate that…”
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Practical challenges in quantum key distribution by Diamanti, Eleni, Lo, Hoi-Kwong, Qi, Bing, Yuan, Zhiliang

“…Quantum key distribution (QKD) promises unconditional security in data communication and is currently being deployed in commercial applications. Nonetheless,…”
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Majorana zero modes and topological quantum computation by Sarma, Sankar Das, Freedman, Michael, Nayak, Chetan

“…We provide a current perspective on the rapidly developing field of Majorana zero modes (MZMs) in solid-state systems. We emphasise the theoretical prediction,…”
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Quantum risk analysis by Woerner, Stefan, Egger, Daniel J.

“…We present a quantum algorithm that analyzes risk more efficiently than Monte Carlo simulations traditionally used on classical computers. We employ quantum…”
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Laser-annealing Josephson junctions for yielding scaled-up superconducting quantum processors by Hertzberg, Jared B., Zhang, Eric J., Rosenblatt, Sami, Magesan, Easwar, Smolin, John A., Yau, Jeng-Bang, Adiga, Vivekananda P., Sandberg, Martin, Brink, Markus, Chow, Jerry M., Orcutt, Jason S.

“…As superconducting quantum circuits scale to larger sizes, the problem of frequency crowding proves a formidable task. Here we present a solution for this…”
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Cambridge quantum network by Dynes, J. F., Wonfor, A., Tam, W. W. -S., Sharpe, A. W., Takahashi, R., Lucamarini, M., Plews, A., Yuan, Z. L., Dixon, A. R., Cho, J., Tanizawa, Y., Elbers, J. -P., Greißer, H., White, I. H., Penty, R. V., Shields, A. J.

“…Future-proofing current fibre networks with quantum key distribution (QKD) is an attractive approach to combat the ever growing breaches of data theft. To…”
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