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1.发明申请公开(公告)号：US20220067565A1
公开(公告)日：2022-03-03
申请号：US17458109
申请日：2021-08-26
申请人： IONQ, INC.
发明人： Reinhold BLUMEL , Nikodem GRZESIAK , Yunseong NAM
摘要： A method of performing a computation using an ion trap quantum computer includes computing a detuning frequency function and an amplitude function of a laser pulse to cause entangling interaction between a pair of trapped ions of a plurality of trapped ions, each of the plurality of trapped ions having two frequency-separated states defining a qubit, splining the computed detuning frequency function of the laser pulse, modifying the computed amplitude function of the laser pulse based on the splined detuning frequency function, and applying a modified laser pulse having the splined detuning frequency function and the modified amplitude function to each trapped ion in the pair of trapped ions.
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2.发明申请公开(公告)号：US20200369517A1
公开(公告)日：2020-11-26
申请号：US16578134
申请日：2019-09-20
申请人： IONQ, INC.
发明人： Yunseong NAM , Reinhold BLUMEL , Nikodem GRZESIAK
摘要： A method of performing an entangling operation between two trapped ions in a quantum computer includes selecting a gate duration value of a pulse to be applied to a first ion and a second ion in a chain of trapped ions, determining one or more tones of the pulse, each tone comprising an amplitude value and a detuning frequency value, based on the selected gate duration value and frequencies of the motional modes of the chain of trapped ions, generating the pulse having the one or more tones, each tone comprising the determined amplitude and the determined detuning frequency values, and applying the generated pulse to the first and second ions for the gate duration value. Each of the trapped ions has two frequency-separated states defining a qubit, and motional modes of the chain of trapped ions each have a distinct frequency.
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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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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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5.发明申请公开(公告)号：US20220405627A1
公开(公告)日：2022-12-22
申请号：US17681504
申请日：2022-02-25
申请人： IONQ, INC.
发明人： Reinhold BLUMEL , Nikodem GRZESIAK
摘要： A method of performing an entangling gate operation using a quantum computer system includes configuring, by a classical computer, an amplitude function of an amplitude-modulated laser pulse over a plurality of time segments to cause entangling interaction between a pair of trapped ions of a plurality of trapped ions, each of the plurality of trapped ions having two frequency-separated states defining a qubit, where the amplitude function in each time segment is splined using a set of basis functions and associated control parameters, and performing an entangling gate operation between the pair of trapped ions by applying, by a system controller, an amplitude-modulated laser pulse having the configured amplitude function to the pair of trapped ions.
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公开(公告)号：US20220284335A1
公开(公告)日：2022-09-08
申请号：US17746544
申请日：2022-05-17
申请人： IONQ, INC.
发明人： Yunseong NAM , Reinhold BLUMEL , Nikodem GRZESIAK
摘要： A method of performing a computation using a quantum computer includes generating a plurality of laser pulses used to be individually applied to each of a plurality of trapped ions that are aligned in a first direction, each of the trapped ions having two frequency-separated states defining a qubit, and applying the generated plurality of laser pulses to the plurality of trapped ions to perform simultaneous pair-wise entangling gate operations on the plurality of trapped ions. Generating the plurality of laser pulses includes adjusting an amplitude value and a detuning frequency value of each of the plurality of laser pulses based on values of pair-wise entanglement interaction in the plurality of trapped ions that is to be caused by the plurality of laser pulses.
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公开(公告)号：US20240296360A1
公开(公告)日：2024-09-05
申请号：US17464595
申请日：2021-09-01
申请人： IONQ, INC.
发明人： Reinhold BLUMEL , Nikodem GRZESIAK , Ming LI , Andrii MAKSYMOV , Yunseong NAM
摘要： A method for performing an entangling operation between trapped ions in a quantum computer includes selecting an amount of infidelity that is allowed in an entangling operation between two trapped ions in a quantum computer, computing a pulse function of a pulse to be applied to each of the two trapped ions based on gate operation conditions and the selected amount of infidelity, generating the pulse based on the computed pulse function, and applying the generated pulse to each of the two trapped ions to perform the entangling operation between the two trapped ions.
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公开(公告)号：US20220284334A1
公开(公告)日：2022-09-08
申请号：US17746453
申请日：2022-05-17
申请人： IONQ, INC.
发明人： Yunseong NAM , Reinhold BLUMEL , Nikodem GRZESIAK
摘要： A method of performing simultaneous entangling gate operations in a trapped-ion quantum computer includes selecting a gate duration value and a detuning frequency of pulses to be individually applied to a plurality of participating ions in a chain of trapped ions to simultaneously entangle a plurality of pairs of ions among the plurality of participating ions by one or more predetermined values of entanglement interaction, determining amplitudes of the pulses, based on the selected gate duration value, the selected detuning frequency, and the frequencies of the motional modes of the chain of trapped ions, generating the pulses having the determined amplitudes, and applying the generated pulses to the plurality of participating ions for the selected gate duration value. Each of the trapped ions in the chain has two frequency-separated states defining a qubit, and motional modes of the chain of trapped ions each have a distinct frequency.
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公开(公告)号：US20200372391A1
公开(公告)日：2020-11-26
申请号：US16854033
申请日：2020-04-21
申请人： IONQ, INC.
发明人： Yunseong NAM , Reinhold BLUMEL , Nikodem GRZESIAK
摘要： A method of performing a computation using a quantum computer includes generating a first laser pulse and a second laser pulse to cause entanglement interaction between a first trapped ion and a second trapped ion of a plurality of trapped ions that are aligned in a first direction, each of the plurality of trapped ions having two frequency-separated states defining a qubit, and applying the generated first laser pulse to the first trapped ion and the generated second laser pulse to the second trapped ion. Generating the first laser pulse and the second laser pulse includes stabilizing the entanglement interaction between the first and second trapped ions against fluctuations in frequencies of collective motional modes of the plurality of trapped ions in a second direction that is perpendicular to the first direction.
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公开(公告)号：US20230029117A1
公开(公告)日：2023-01-26
申请号：US17945610
申请日：2022-09-15
申请人： IONQ, INC.
发明人： Yunseong NAM , Reinhold BLUMEL , Nikodem GRZESIAK
摘要： A method of performing a computation using a quantum computer includes generating a first laser pulse and a second laser pulse to cause entanglement interaction between a first trapped ion and a second trapped ion of a plurality of trapped ions that are aligned in a first direction, each of the plurality of trapped ions having two frequency- separated states defining a qubit, and applying the generated first laser pulse to the first trapped ion and the generated second laser pulse to the second trapped ion. Generating the first laser pulse and the second laser pulse includes stabilizing the entanglement interaction between the first and second trapped ions against fluctuations in frequencies of collective motional modes of the plurality of trapped ions in a second direction that is perpendicular to the first direction.
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