Showing 21 - 40 results of 41 for search '"quantum control"', query time: 0.06s Refine Results
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    Controlling the Shannon Entropy of Quantum Systems by Yifan Xing, Jun Wu

    Published 2013-01-01
    “…This paper proposes a new quantum control method which controls the Shannon entropy of quantum systems. …”
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    Observation of quantum temporal correlations well beyond Lüders bound by Chun-Wang Wu, Man-Chao Zhang, Yan-Li Zhou, Ting Chen, Ran Huang, Yi Xie, Wen-bo Su, Bao-Quan Ou, Wei Wu, Adam Miranowicz, Franco Nori, Jie Zhang, Hui Jing, Ping-Xing Chen

    Published 2025-01-01
    “…In contrast, how to achieve strong quantum temporal correlations (QTCs) has remained as a long-standing challenge, thus hindering their applications in time-domain quantum control. Here we experimentally demonstrate that by using a parity-time (PT)–symmetric single ion, the conventional QTC limit known as the Lüders bound can be well surpassed within a standard measurement scenario, approaching the predicted maximum QTC value. …”
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    Superconducting quantum computing optimization based on multi-objective deep reinforcement learning by Yangting Liu

    Published 2025-01-01
    “…By setting the single-process quantum control optimization result as a multi-objective optimization truncation threshold and reward function transfer strategy, we finally gave a global optimal solution that considers multiple influencing factors, rather than a local optimal solution that only targets a certain error. …”
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    Few-photon SUPER: Quantum emitter inversion via two off-resonant photon modes by Quentin W. Richter, Jan M. Kaspari, Thomas K. Bracht, Leonid Yatsenko, Vollrath Martin Axt, Arno Rauschenbeutel, Doris E. Reiter

    Published 2025-01-01
    “…Furthermore, our results can be understood as a quantized analog of the recently developed off-resonant quantum control scheme known as swing-up of quantum emitter (SUPER). …”
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    Heralded interconversion between hyperentangled W state and hyperentangled KLM state assisted by nitrogen vacancy centers coupled with microresonators by Fang-Fang Du, Ming Ma, Qiu-lin Tan

    Published 2025-01-01
    “…Here we realize completely mutual conversions between spatial-polarization hyperentangled Knill-Laflamme-Milburn state and hyperentangled W state for three-photon systems, resorting to hyperparallel quantum control gates and the practical nonlinear interaction of nitrogen-vacancy centers coupled with whispering-gallery-mode microresonators. …”
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    Unveiling hidden geometric phase of neutron spin rotation in the Bitter–Dubbers experiment by Jian-Jian Cheng, Lin Zhang

    Published 2025-01-01
    “…The hidden phase is revealed through transitionless quantum control techniques, ensuring pure geometric phase accumulation even in non-adiabatic regimes. …”
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    Quantum metrology using quantum combs and tensor network formalism by Stanisław Kurdziałek, Piotr Dulian, Joanna Majsak, Sagnik Chakraborty, Rafał Demkowicz-Dobrzański

    Published 2025-01-01
    “…We develop an efficient algorithm for determining optimal adaptive quantum estimation protocols with arbitrary quantum control operations between subsequent uses of a probed channel.We introduce a tensor network representation of an estimation strategy, which drastically reduces the time and memory consumption of the algorithm, and allows us to analyze metrological protocols involving up to N  = 50 qubit channel uses, whereas the state-of-the-art approaches are limited to N  < 5. …”
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    Deterministic multi-phonon entanglement between two mechanical resonators on separate substrates by Ming-Han Chou, Hong Qiao, Haoxiong Yan, Gustav Andersson, Christopher R. Conner, Joel Grebel, Yash J. Joshi, Jacob M. Miller, Rhys G. Povey, Xuntao Wu, Andrew N. Cleland

    Published 2025-02-01
    “…The compact, modular, and scalable platform we demonstrate will enable further advances in the quantum control of complex mechanical systems.…”
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    Collective coupling of driven multilevel atoms and its effect on four-wave mixing by P. Yanes-Thomas, R. Gutiérrez-Jáuregui, P. Barberis-Blostein, D. Sahagún-Sánchez, R. Jáuregui, A. Kunold

    Published 2025-01-01
    “…The intuition obtained from this connection helps to uncover relevant parameters that could be exploited for quantum control protocols based on dispersive and dissipative cooperative effects in multilevel systems.…”
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    A mid-circuit erasure check on a dual-rail cavity qubit using the joint-photon number-splitting regime of circuit QED by Stijn J. de Graaf, Sophia H. Xue, Benjamin J. Chapman, James D. Teoh, Takahiro Tsunoda, Patrick Winkel, John W. O. Garmon, Kathleen M. Chang, Luigi Frunzio, Shruti Puri, Robert J. Schoelkopf

    Published 2025-01-01
    “…Abstract Quantum control of a linear oscillator using a static dispersive coupling to a nonlinear ancilla underpins a wide variety of experiments in circuit QED. …”
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    Mapping indefinite causal order processes to composable quantum protocols in a spacetime by Matthias Salzger, V Vilasini

    Published 2025-01-01
    “…To address these points, we compare the formalism of quantum circuits with quantum control of causal order (QC-QC), which models an interesting class of ICS processes, with that of causal boxes, which models composable quantum information protocols in spacetime. …”
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