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公开(公告)号：US20230409943A1
公开(公告)日：2023-12-21
申请号：US17843801
申请日：2022-06-17
发明人： Tuhin Sahai , Hari Kiran Krovi
CPC分类号： G06N10/40 , G06N10/20 , G06K9/6224 , G06K9/0053
摘要： A method for node cluster assignment in a graph includes initializing a plurality of wavefunctions, each one of the plurality of wavefunctions corresponding to nodes of the graph, constructing a plurality of quantum circuits, each corresponding to a graph Laplacian of the graph, evolving the plurality of wavefunctions at the plurality of quantum circuits, each one of the plurality of wavefunctions being evolved to a different time than other ones of the plurality of wavefunctions, measuring evolved states of the plurality of wavefunctions to generate a time-evolved wavefunction vector, and identifying a cluster assignment of a node of the graph based on the time-evolved wavefunction vector.
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公开(公告)号：US20230409643A1
公开(公告)日：2023-12-21
申请号：US17843863
申请日：2022-06-17
发明人： Tuhin Sahai , Hari Kiran Krovi
IPC分类号： G06F16/906 , G06F16/901
CPC分类号： G06F16/906 , G06F16/9024
摘要： A method for node cluster assignment in a graph includes identifying neighboring nodes of a first node in the graph, calculating one or more elements of a graph Laplacian of the graph, the one or more elements of the graph Laplacian corresponding to the first node and the neighboring nodes, initializing a first wavefunction associated with the first node with an initial value, evolving the first wavefunction associated with the first node over time based on the initial value, the one or more elements of the graph Laplacian, and previous states of wavefunctions of the neighboring nodes to generate a time-evolved wavefunction vector, and identifying a cluster assignment of the first node based on the time-evolved wavefunction vector.
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3.发明公开公开(公告)号：US20230169673A1
公开(公告)日：2023-06-01
申请号：US17827572
申请日：2022-05-27
发明人： Hari Kiran Krovi
CPC分类号： G06T7/70 , G02B27/10 , G06T2207/20056 , G06T2207/20076
摘要： An optical circuit for estimating separation distances between N image sources includes an aperture for receiving N light beams and producing a point spread function specific to a symmetry of the image sources from the plurality of light beams; first optical phase shifters to shift the quantum state modes of (N-1) light beams by ɯNN; first beamsplitters, each for mixing respective pairs of quantum state modes of outputs of the first optical phase shifters for a quantum superposition of the respective pairs of the quantum state modes; second beamsplitters, each for mixing respective outputs of the first beamsplitters alternatively; second phase shifters to further shift outputs of the second beamsplitters; N detectors for converting each of the received N light beams to an analog signal; and a signal processing circuit for performing signal processing on the analog signals to estimate the separation distances.
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公开(公告)号：US20230168084A1
公开(公告)日：2023-06-01
申请号：US17827568
申请日：2022-05-27
发明人： Hari Kiran Krovi
IPC分类号： G01C3/08
CPC分类号： G01C3/08
摘要： Method for estimating separation distances between a plurality of image sources in a multi-point source imaging system includes: receiving a plurality of light beams, each from a respective image source and having a quantum state mode; constructing a point spread function (PSF) for light beams specific to a symmetry of the image sources; calculating a quantum Fourier transform on the quantum state mode of the plurality of light beams that achieves a quantum limit in a paraxial approximation regime to estimate separation of image sources at the quantum limit to transform the light beams; detecting the transformed light beams to generate electrical signals from respective transformed light beams; and performing signal processing on the electrical signals to estimate the separation distances between the plurality of image sources.
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公开(公告)号：US20210150402A1
公开(公告)日：2021-05-20
申请号：US17025374
申请日：2020-09-18
发明人： Benjamin Lienhard , William D. Oliver , Simon Gustavsson , Antti Pekka Vepsalainen , Terry Philip Orlando , Luke Colin Gene Govia , Hari Kiran Krovi , Thomas Ohki
摘要： Techniques for machine learning assisted qubit state readout are disclosed. A system a set of training data that describes states of multiple qubits, and trains a neural network to determine qubit states based on the set of training data. The system obtains one or more unlabeled qubit signals, and determines one or more states corresponding to the unlabeled qubit signal(s), using the neural network. The unlabeled qubit signal(s) may include one or more multiplexed qubit signals, and the state(s) corresponding to the unlabeled qubit signal(s) may include one or more multi-qubit states based on the multiplexed qubit signal(s).
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公开(公告)号：US20200092975A1
公开(公告)日：2020-03-19
申请号：US16135771
申请日：2018-09-19
发明人： Hari Kiran Krovi
摘要： A system for modeling a collisional plasma particles distribution is provided. The system includes an input beam generator configured to generate an input beam having a first set of values of a parameter modelling an initial distribution of particles in a collisional plasma, a non-linear optical medium configured to receive the input beam and produce a complex response function in response to receiving the input beam, an output detector configured to detect a second set of values of the parameter responsive to propagation of the input beam through the non-linear medium to the output detector, a feedback module configured to modify one or more properties of the non-linear optical medium, and a controller configured to select the first set of values, receive the second set of values, and determine, based on the first set and the second set of values, a final distribution of the particles in the collisional plasma.
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公开(公告)号：US10817797B1
公开(公告)日：2020-10-27
申请号：US16679126
申请日：2019-11-08
IPC分类号： G06N10/00 , G06F9/38 , H03K19/195
摘要： A method for characterizing an N-qubit process, for N an integer greater than 1. In some embodiments, the method includes performing a plurality of characterization measurements of the N-qubit process to form a plurality of process maps, and fitting the plurality of process maps with a composition of K-qubit processes, K being an integer greater than 1 and less than N.
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公开(公告)号：US10069573B2
公开(公告)日：2018-09-04
申请号：US15424563
申请日：2017-02-03
发明人： Hari Kiran Krovi , Saikat Guha
IPC分类号： H04J14/00 , H04B10/70 , H04B10/2557 , H04Q11/00 , G06N99/00
摘要： A method implemented by an optical circuit, including beam splitter, phase shifters and cross-phase modulators, for solving Ising-model using quantum annealing discretizes a continuous time-dependent Hamiltonian function over a time period T, into a plurality of smaller portions; implements each of said smaller portions with a non-linear optical medium, and iterates over said smaller portions to output a solution of the Ising Hamiltonian problem, using the optical components.
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9.发明授权公开(公告)号：US12051219B2
公开(公告)日：2024-07-30
申请号：US17827572
申请日：2022-05-27
发明人： Hari Kiran Krovi
CPC分类号： G06T7/70 , G01C3/08 , G02B27/10 , G06T2207/20056 , G06T2207/20076
摘要： An optical circuit for estimating separation distances between N image sources includes an aperture for receiving N light beams and producing a point spread function specific to a symmetry of the image sources from the plurality of light beams; first optical phase shifters to shift the quantum state modes of (N-1) light beams by NN; first beamsplitters, each for mixing respective pairs of quantum state modes of outputs of the first optical phase shifters for a quantum superposition of the respective pairs of the quantum state modes; second beamsplitters, each for mixing respective outputs of the first beamsplitters alternatively; second phase shifters to further shift outputs of the second beamsplitters; N detectors for converting each of the received N light beams to an analog signal; and a signal processing circuit for performing signal processing on the analog signals to estimate the separation distances.
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公开(公告)号：US20190246484A1
公开(公告)日：2019-08-08
申请号：US15887040
申请日：2018-02-02
发明人： Hari Kiran Krovi
CPC分类号： H05H1/46 , G01T1/2914 , H01J37/32339 , H01J37/32972 , H01L51/42
摘要： An optical system for modeling a distribution of plasma particles is provided. The system includes an electromagnetic wave generator configured to generate an electromagnetic wave having a first set of values of a parameter, a non-linear medium configured to receive, from the electromagnetic wave generator, the electromagnetic wave, an output detector configured to detect a second set of values of the parameter responsive to propagation of the electromagnetic wave through the non-linear medium, and a controller configured to select the first set of values of the parameter, communicate the first set of values of the parameter to the electromagnetic wave generator, receive, from the output detector, the second set of values of the parameter, and determine, based on the first set of values of the parameter and the second set of values of the parameter, a distribution of plasma particles.
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