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公开(公告)号：US20230334116A1
公开(公告)日：2023-10-19
申请号：US18118252
申请日：2023-03-07
申请人： IONQ, INC.
发明人： Reinhold BLUMEL , Yunseong NAM , Andrii MAKSYMOV
摘要： A method of performing a quantum computation process includes computing first Fourier coefficients of a first pulse function of a first control pulse and second Fourier coefficients of a second pulse function of a second control pulse based on a condition for closure of phase space trajectories and a condition for stabilization of phase-space closure, and computing a first linear combination of the computed first Fourier coefficients and a second linear combination of the computed second Fourier coefficients based on a condition for non-zero degree of entanglement, a condition for stabilization of the degree of entanglement, and a condition for minimized power, applying the first control pulse having the computed first pulse function to a first trapped ion of a pair of trapped ions, and the second control pulse having the computed second pulse function to a second trapped ion of a pair of trapped ions.
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12.发明公开公开(公告)号：US20230259804A1
公开(公告)日：2023-08-17
申请号：US17862039
申请日：2022-07-11
申请人： IONQ, INC. , University of Maryland
摘要： A method of performing computation using an ion trap quantum computing system including a classical computer, a system controller, and a quantum processor includes computing, by the classical computer, a circuit that implements a selected set of gate operations, using one or more efficient arbitrary simultaneous entangling (EASE) gates, implementing, by the system controller, the computed circuit on the quantum processor, measuring, by the system controller, population of qubit states in the quantum processor, and outputting, by the classical computer, the measured population of qubit states in the quantum processor.
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公开(公告)号：US20230213988A1
公开(公告)日：2023-07-06
申请号：US18148052
申请日：2022-12-29
申请人： IonQ, Inc.
发明人： Shantanu DEBNATH , Jason Hieu Van Nguyen , Peter Lukas Wilhelm Maunz , Kevin Antony Landsman , Hermann Uys
摘要： A system and method is provided for use in the implementation and/or operation of quantum information processing (QIP) systems, and more particularly, to design or configure an optimal side-band cooling operation for trapped ions. A method is described that involves applying a first cooling operation on the trapped ion chain and subsequently applying a second cooling operation on the trapped ion chain that includes applying to each cooling ion in the trapped ion chain, as part of a side-band cooling pulse sequence, at least one analysis pulse followed by a corresponding batch with one or more side-band cooling pulses, wherein each analysis pulse is configured to determine a detuning and pulse duration of the one or more side-band cooling pulses of the corresponding batch. A quantum computer or QIP system is also described that enables the operation of the method described above.
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14.发明公开公开(公告)号：US20230140906A1
公开(公告)日：2023-05-11
申请号：US18148202
申请日：2022-12-29
申请人： IonQ, Inc.
CPC分类号： G01J3/4406 , G06N10/40
摘要： Aspects of the present disclosure may include a method and/or a system for applying, to one or more ions in an ion chain, a first light beam having a first polarization and a second light beam having a second polarization to transfer the one or more ions from a first state of a first manifold to a second state of the first manifold, applying, to the one or more ions, the first light beam and the second light beam to transfer the one or more ions from the second state back to the first state, and applying, to the one or more ions, a third light beam to transition the one or more ions from the first state to a third state in a second manifold.
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15.发明申请公开(公告)号：US20230131053A1
公开(公告)日：2023-04-27
申请号：US18145954
申请日：2022-12-23
申请人： IonQ, Inc.
摘要： Aspects of the present disclosure may include a method and/or a system for applying, to one or more surface electrode trapped ions, a first electric field in a first direction, applying, to the one or more surface electrode trapped ions, a plurality of second electric fields in a second direction while applying the first electric field, wherein the second direction is substantially orthogonal to the first direction, measuring, for each of the plurality of second electric fields, a corresponding micromotion signal associated with the application of one or more of the first electric field or one of the plurality of second electric fields, identifying a maximum micromotion signal of a plurality of micromotion signals associated with the plurality of second electric fields, and identifying a compensation field associated with the maximum micromotion signal.
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公开(公告)号：US20230120170A1
公开(公告)日：2023-04-20
申请号：US18047874
申请日：2022-10-19
申请人： IonQ, Inc.
发明人： Shantanu DEBNATH , Aleksey Blinov , Coleman Collins , Kenneth Wright , Neal C. Pisenti , Kristin M. Beck , Jwo-Sy Chen , Jason Hieu Van Nguyen , Kevin Antony Landsman , Hemann Uys , Matthew Keesan
摘要： Systems and methods for use in the implementation and/or operation of quantum information processing (QIP) systems or quantum computers, and more particularly, to benchmark-driven automation for tuning quantum computers are described. A method includes identifying a set of quantum gates and a number of experimental shots to perform a benchmark algorithm for active stabilization of one or more observables of the set of quantum gates and executing the benchmarking algorithm based on the set of quantum gates and the number of experimental shots. Moreover, in response to the benchmarking algorithm being successful, executing an algorithm on the quantum computer, and in response to the benchmarking algorithm being unsuccessful, iterating the benchmarking algorithm by adjusting the set of quantum gates until the benchmarking algorithm is successful or a preset number of iterations is reached.
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公开(公告)号：US20230059264A1
公开(公告)日：2023-02-23
申请号：US17890864
申请日：2022-08-18
申请人： IonQ, Inc. , Duke University
发明人： Jungsang KIM , Jonathan Albert MIZRAHI , Jason Madjdi AMINI , Kenneth WRIGHT , Neal PISENTI , Hermann UYS , Ming LI , Michael Lurie GOLDMAN , Jeremy Matthew SAGE , Kai Makoto HUDEK , Yunseong NAM , Nikodem GRZESIAK , Reinhold BLUMEL
摘要： The use of multiple ion chains in a single ion trap for quantum information processing (QIP) systems is described. Each chain can have its own set of laser beams with which to implement and operate quantum gates within that chain, where each chain may therefore correspond to a single quantum computing register or core. Operations can be performed in parallel across all of these chains as they can be treated independently from each other. To implement and operate quantum gates between different chains, neighboring chains are merged into a single, larger chain, in which one can perform quantum gates between any of the ions in the larger chain. The combined chains can then be separated again by another shuttling event as needed. To implement and operate quantum gates between ions which do not occupy neighboring chains, swap gates can be used via a sequence of intervening chains.
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公开(公告)号：US20230036559A1
公开(公告)日：2023-02-02
申请号：US17865116
申请日：2022-07-14
申请人： IonQ, Inc.
IPC分类号： G06N10/40
摘要： Aspects of the present disclosure include methods and systems for modulating light sources including applying, through an acousto-optic modulator (AOM) disposed in series with an electro-optic modulator (EOM), a global optical beam to a plurality of dual-space, single-species (DSSS) trapped ions at a wavelength near a transition center and adjusting a drive tone of at least one of the EOM or the AOM to modulate the global beam to emit at approximately half of a S1/2 hyperfine frequency.
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公开(公告)号：US20230032907A1
公开(公告)日：2023-02-02
申请号：US17877334
申请日：2022-07-29
申请人： IonQ, Inc.
发明人： Jason Madjdi AMINI
IPC分类号： H01J49/42
摘要： A shaped central electrode is described that is placed between a pair of radio frequency (RF) rails of a trap configured to hold atomic-based qubits to control aspects of the operation of the trap. In one aspect, the shaping may involve forming a pinched region in the middle of the central electrode. The middle of the central electrode may correspond to the middle portion of the trap. The shaping of the central electrode may be achieved in different ways and may involve varying the width of the central electrode. The trap may be fabricated on a glass die or substrate, which itself may be shaped or not. The trap may be fabricated by various methods such as, but not limited to, patterned metal layers on glass or silicon substrates. A quantum information processing (QIP) system is also described that may include a trap having any of these features.
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公开(公告)号：US20230018878A1
公开(公告)日：2023-01-19
申请号：US17866258
申请日：2022-07-15
申请人： IonQ, Inc.
摘要： Aspects of the present disclosure may include a method and/or a system for biasing FOFI qubits including applying a magnetic field to one or more first order field insensitive (FOFI) qubits, wherein a first magnetic field sensitivity of the one or more FOFI qubits in a first state of a first manifold is substantially equal to a second magnetic field sensitivity of the one or more FOFI qubits in a second state of a second manifold, a global optical beam to the one or more FOFI qubits, and one or more Raman beams, wherein an application of at least one of the global optical beam or the one or more Raman beams transitions the one or more FOFI qubits from the first state to the second state.
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