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公开(公告)号：US20210150401A1
公开(公告)日：2021-05-20
申请号：US16953270
申请日：2020-11-19
Inventor： Quntao Zhuang , Zheshen Zhang
Abstract: A system for entanglement-enhanced machine learning with quantum data acquisition includes a first variational circuit that generates a plurality of entangled probe light fields that interacts with a sample and is then processed by a second variational quantum circuit to produce at least one detection light field, a detector is used to measure a property of the at least one detection light field, and the first and second variational quantum circuits are optimized though machine learning. A method for entanglement-enhanced machine learning with quantum data acquisition includes optimizing a setting of a first and second variational quantum circuits, which includes probing a training-set with a plurality of entangled probe light fields generated by the first variational quantum circuit, and measuring a phase property of at least one detection light fields generated by the second variational quantum circuit from the plurality of entangled probe light fields after interaction with the training-set.
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Patent Agency Ranking
公开(公告)号：US20240267131A1
公开(公告)日：2024-08-08
申请号：US18289884
申请日：2022-05-19
Inventor： Saikat Guha , Ali Cox , Quntao Zhuang , Christos Gagatsos , Boulat Bash
CPC classification number: H04B10/70 , H04B10/615
Abstract: Processing codewords comprises: receiving encoded signals associated with reference signals related by quantum entanglement, where the encoded signals have been encoded with respective phases corresponding to symbols of a particular codeword; performing a first nonlinear optical process with inputs comprising a first signal derived from the encoded signals and a first signal derived from the reference signals; performing a second nonlinear optical process with inputs comprising a second signal derived from the encoded signals and a signal derived from a first output of the first nonlinear optical process; performing a first linear optical process with inputs comprising a signal derived from a second output of the first nonlinear optical process and a signal derived from a first output of the second nonlinear optical process; and processing information that includes signals derived from one or more outputs of the first linear optical process to generate an estimate of the particular codeword.
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公开(公告)号：US11258519B2
公开(公告)日：2022-02-22
申请号：US17190250
申请日：2021-03-02
Inventor： Zheshen Zhang , Chaohan Cui , Quntao Zhuang , William Horrocks
Abstract: A quantum receiver for decoding an optical signal includes a beamsplitter for interfering the optical signal with a local-oscillator field to generate a displaced field, and a single-photon detector for detecting the displaced field. The quantum receiver also includes a signal-processing circuit for determining, based on an electrical output of the single-photon detector, a measurement outcome. The signal-processing circuit also determines, based on the measurement outcome and a feed-forward machine-learning model, a next displacement. The quantum receiver also includes at least one modulator for modulating, based on the next displacement, one or both of the optical signal and the local-oscillator field. Like a Dolinar receiver, the quantum receiver implements adaptive measurements to reduce the error probability of the decoded symbol. The use of machine-learning reduces the latency of the signal-processing circuit, thereby increasing the number of measurements that may be performed for each received symbol.
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公开(公告)号：US20210273731A1
公开(公告)日：2021-09-02
申请号：US17190250
申请日：2021-03-02
Inventor： Zheshen Zhang , Chaohan Cui , Quntao Zhuang , William Horrocks
Abstract: A quantum receiver for decoding an optical signal includes a beamsplitter for interfering the optical signal with a local-oscillator field to generate a displaced field, and a single-photon detector for detecting the displaced field. The quantum receiver also includes a signal-processing circuit for determining, based on an electrical output of the single-photon detector, a measurement outcome. The signal-processing circuit also determines, based on the measurement outcome and a feed-forward machine-learning model, a next displacement. The quantum receiver also includes at least one modulator for modulating, based on the next displacement, one or both of the optical signal and the local-oscillator field. Like a Dolinar receiver, the quantum receiver implements adaptive measurements to reduce the error probability of the decoded symbol. The use of machine-learning reduces the latency of the signal-processing circuit, thereby increasing the number of measurements that may be performed for each received symbol.
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公开(公告)号：US12067456B2
公开(公告)日：2024-08-20
申请号：US16953270
申请日：2020-11-19
Inventor： Quntao Zhuang , Zheshen Zhang
Abstract: A system for entanglement-enhanced machine learning with quantum data acquisition includes a first variational circuit that generates a plurality of entangled probe light fields that interacts with a sample and is then processed by a second variational quantum circuit to produce at least one detection light field, a detector is used to measure a property of the at least one detection light field, and the first and second variational quantum circuits are optimized though machine learning. A method for entanglement-enhanced machine learning with quantum data acquisition includes optimizing a setting of a first and second variational quantum circuits, which includes probing a training-set with a plurality of entangled probe light fields generated by the first variational quantum circuit, and measuring a phase property of at least one detection light fields generated by the second variational quantum circuit from the plurality of entangled probe light fields after interaction with the training-set.
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6.发明申请公开(公告)号：US20210159987A1
公开(公告)日：2021-05-27
申请号：US17102088
申请日：2020-11-23
Applicant: Arizona Board of Regents on Behalf of the University of Arizona , General Dynamics Mission Systems, Inc.
Inventor： Zheshen Zhang , Yi Xia , Quntao Zhuang , William Clark
Abstract: An entangled, spatially distributed, quantum sensor network enhanced by quantum repeaters includes a probe-state generator for generating M entangled light fields, where M is an integer greater than one. The quantum sensor network also includes M spatially distributed sensor modules that communicate with the probe-state generator to receive the M entangled light fields, respectively, and conduct a measurement therewith. The quantum sensor network also includes one or more quantum repeaters, each of which is (a) located in a propagation channel of a respective one of the entangled light fields to its corresponding sensor module from the probe-state generator, and (b) includes a plurality of quantum scissors to amplify the entangled light field to at least partly compensate for loss in the propagation channel.
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