113 patents
Utility
Double Individual-addressing Multi-beam Raman System
18 Jan 24
Aspects of the present disclosure relate generally to systems and methods for use in the implementation and/or operation of quantum information processing (QIP) systems, and more particularly, to a double individual-addressing multi-beam Raman system for use in QIP systems.
Neal C. PISENTI, Kai Makoto HUDEK, Kenneth WRIGHT, Tan LIU, David ANGELEY, Nadir SHAH, Sarah Margaret KREIKEMEIER
Filed: 6 Dec 22
Utility
Accelerated Pattern Matching Method on a Quantum Computing System
11 Jan 24
A method of determining a pattern in a sequence of bits using a quantum computing system includes setting a first register of a quantum processor in a superposition of a plurality of string index states, encoding a bit string in a second register of the quantum processor, encoding a bit pattern in a third register of the quantum processor, circularly shifting qubits of the second register conditioned on the first register, amplifying an amplitude of a state combined with the first register in which the circularly shifted qubits of the second register matches qubits of the third register, measuring an amplitude of the first register and determining a string index state of the plurality of string index states associated with the amplified state, and outputting, by use of a classical computer, a string index associated with the first register in the measured state.
Pradeep NIROULA, Yunseong NAM
Filed: 18 Sep 23
Utility
Methods and Apparatuses for Aod Crosstalk Mitigation
4 Jan 24
Aspects of the present disclosure may include a method and/or a system for identifying an ion chain having a plurality of trapped ions, selecting at least two non-consecutive trapped ions in the ion chain for implementing a qubit, applying at least a first Raman beam to shuttle at least one neighbor ion of the at least two non-consecutive trapped ions from a ground state to a metastable state, and applying at least a second Raman beam to one or more of the at least two non-consecutive trapped ions, after shuttling the at least one neighbor ion to the metastable state, to transition from a first manifold to a second manifold.
Ismail Volkan INLEK
Filed: 17 Nov 22
Utility
Ion Chain Motional Mode Measurement by Fast Scan with Maximum Weight Matching Method
28 Dec 23
A method of performing a computational process using a quantum computer includes measuring a coupling strength of each trapped ion in an ion chain and each motional mode of the ion chain, wherein the trapped ions comprises first trapped ions that are addressable by laser beams, and second trapped ions that are not addressable by laser beams, computing a first map of the first trapped ions to the motional modes, wherein the motional mode comprises first motional modes that are allocated by the first map and second motional modes that are unallocated by the first map, measuring frequencies of the first motional modes, computing a second map of the first trapped ions to the second motional modes, measuring frequencies of the second motional modes, and outputting the measured frequencies of the motional modes, to be used for computing a pulse to be applied to the ion chain.
Ming LI, Omar SHEHAB, Yunseong NAM
Filed: 8 Nov 22
Utility
Efficient Motional-mode Characterization for High-fidelity Trapped-ion Quantum Computing
21 Dec 23
A method of using an ion trap quantum computer includes performing a first measurement of bright-state population of each ion in an ion chain, the each ion coupled to one of motional modes of the ion chain, while varying laser coupling frequency, computing mode frequency of the one of the motional mode based on the measured bright-state population in the first measurement, performing a second measurement of bright-state population of each ion in the ion chain, and computing coupling strength of the each ion and the one of the motional mode by fitting the bright-state population of the each ion measured in the second measurement to a value of the bright-state population computed based on the computed mode frequency of the one of the motional modes and non-zero temperature effect of the motional modes.
Mingyu KANG, Qiyao LIANG, Ming LI, Yunseong NAM
Filed: 25 May 23
Utility
Universal Gate Pulse for Two-qubit Gates on a Trapped-ion Quantum Computer
14 Dec 23
A method for performing at least a portion of a computational process includes computing a pulse function of a pulse to be applied to a first pair of trapped ions in a first ion chain based on a phase-space condition, wherein the phase-space condition is derived using equi-spaced synthetic frequencies in a frequency interval that includes a range set by a highest and a lowest motional mode frequency of the first ion chain, generating the pulse based on the computed pulse function, and applying the generated pulse to each of a second pair of trapped ions in a second ion chain to perform an entangling gate operation between the second pair of trapped ions in the second ion chain.
Reinhold BLÜMEL, Nikodem GRZESIAK, Ming LI, Andrii MAKSYMOV, Yunseong NAM
Filed: 21 Oct 22
Utility
Methods and Apparatuses for Reducing Phase Noise
14 Dec 23
Aspects of the present disclosure may include a method and/or a system for identifying an ion chain having a plurality of trapped ions, selecting at least two non-consecutive trapped ions in the ion chain for implementing a qubit, applying at least a first Raman beam to shuttle at least one neighbor ion of the at least two non-consecutive trapped ions from a ground state to a metastable state, and applying at least a second Raman beam to one or more of the at least two non-consecutive trapped ions, after shuttling the at least one neighbor ion to the metastable state, to transition from a first manifold to a second manifold.
Michael Lurie GOLDMAN, Jonathan Albert MIZRAHI, Jeremy Mathew SAGE
Filed: 10 Oct 22
Utility
Methods and Apparatuses for Mapping State Preparation Error to Subspace Leakage Error
14 Dec 23
Aspects of the present disclosure may include a method and/or a system for identifying an ion chain having a plurality of trapped ions, selecting at least two non-consecutive trapped ions in the ion chain for implementing a qubit, applying at least a first Raman beam to shuttle at least one neighbor ion of the at least two non-consecutive trapped ions from a ground state to a metastable state, and applying at least a second Raman beam to one or more of the at least two non-consecutive trapped ions, after shuttling the at least one neighbor ion to the metastable state, to transition from a first manifold to a second manifold.
Michael Lurie GOLDMAN
Filed: 11 Oct 22
Utility
Crosstalk Reduction In Multi-channel Acousto-optic Modulators
14 Dec 23
Aspects of the present disclosure describe controlling coherent crosstalk errors in multi-channel acousto-optic modulators (AOMs).
Kristin Marie BECK, Vandiver Chaplin
Filed: 14 Aug 23
Utility
Vibration Mitigation with Optical Folding
7 Dec 23
Aspects of the present disclosure relate generally to systems and methods for use in the implementation and/or operation of quantum information processing (QIP) systems.
Jason Madjdi AMINI, Kai Makoto HUDEK, Sarah Margaret KREIKEMEIER
Filed: 3 Jun 22
Utility
Accelerated pattern matching method on a quantum computing system
21 Nov 23
A method of determining a pattern in a sequence of bits using a quantum computing system includes setting a first register of a quantum processor in a superposition of a plurality of string index states, encoding a bit string in a second register of the quantum processor, encoding a bit pattern in a third register of the quantum processor, circularly shifting qubits of the second register conditioned on the first register, amplifying an amplitude of a state combined with the first register in which the circularly shifted qubits of the second register matches qubits of the third register, measuring an amplitude of the first register and determining a string index state of the plurality of string index states associated with the amplified state, and outputting, by use of a classical computer, a string index associated with the first register in the measured state.
Pradeep Niroula, Yunseong Nam
Filed: 6 May 21
Utility
Parallel Multi-qubit Operations on a Universal Ion Trap Quantum Computer
16 Nov 23
The disclosure describes various aspects related to enabling effective multi-qubit operations, and more specifically, to techniques for enabling parallel multi-qubit operations on a universal ion trap quantum computer.
Caroline FIGGATT, Aaron OSTRANDER, Norbert M. LINKE, Kevin A. LANDSMAN, Daiwei ZHU, Dmitri MASLOV, Christopher MONROE
Filed: 28 Apr 23
Utility
Methods and Apparatuses for Performing Echo Sequence
16 Nov 23
Aspects of the present disclosure may include a method and/or a system for identifying an ion chain having a plurality of trapped ions, selecting at least two non-consecutive trapped ions in the ion chain for implementing a qubit, applying at least a first Raman beam to shuttle at least one neighbor ion of the at least two non-consecutive trapped ions from a ground state to a metastable state, and applying at least a second Raman beam to one or more of the at least two non-consecutive trapped ions, after shuttling the at least one neighbor ion to the metastable state, to transition from a first manifold to a second manifold.
Michael Lurie GOLDMAN, Jonathan Albert MIZRAHI, Jeremy Matthew SAGE
Filed: 20 Sep 22
Utility
Optimal fault-tolerant implementations of Heisenberg interactions and controlled-Z
14 Nov 23
The disclosure describes various aspects of techniques for optimal fault-tolerant implementations of controlled-Za gates and Heisenberg interactions.
Yunseong Nam, Dmitri Maslov
Filed: 13 Feb 19
Utility
Efficient Cooling of Ion Chains for Quantum Computation
2 Nov 23
The disclosure describes various aspects of techniques for cooling a chain of ions to near the combined ground state that does not grow with the number of ions in the chain.
Jason Madjdi AMINI
Filed: 21 Jun 23
Utility
Multi-layer Ion Trap on Shaped Glass or Dielectric Substrate
26 Oct 23
Aspects of the present disclosure describe devices trapping devices for use in quantum information processing (QIP) architectures, and more particularly, to the use and fabrication of a multi-layer ion trap on shaped glass or dielectric substrate.
Jason Madjdi AMINI, Jonathan Albert MIZRAHI, Jeremy Matthew SAGE, James Walker STEERE
Filed: 18 Apr 23
Utility
Parabolic Cassegrain-type reflector for ablation loading
24 Oct 23
Aspects of the present disclosure describe techniques for using a parabolic Cassegrain-type reflector for ablation.
Kenneth Wright, Jason Madjdi Amini, Jungsang Kim
Filed: 8 Jun 21
Utility
Stabilized Entangling Operations In a Quantum Computing System
19 Oct 23
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.
Reinhold BLUMEL, Yunseong NAM, Andrii MAKSYMOV
Filed: 7 Mar 23
Utility
Methods and Apparatuses for Barium States Preparations for Quantum Operations
12 Oct 23
A method and system is provided for operating a quantum information processing (QIP) system, including a dual-space, single-species architecture for trapped-ion quantum information processing.
Michael Lurie GOLDMAN, Adam Daniel WEST, Hermann UYS, Peter Lukas Wilhelm MAUNZ
Filed: 15 Jul 22
Utility
Quantum circuit optimization
10 Oct 23
Technologies are described herein to implement an optimizer that receives portions of a quantum circuit; identifies, from within the received portions of the quantum circuit, a pattern of quantum gates to perform a quantum function; searches a library for a replacement pattern of quantum gates, which is also to perform the quantum function, for the identified pattern of quantum gates; determines that a quantum cost of the replacement pattern of quantum gates is lower than a quantum cost of the identified pattern of quantum gates; and replaces the identified pattern of quantum gates with the replacement pattern of quantum gates.
Vandiver Chaplin, Yunseong Nam
Filed: 21 Feb 19