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公开(公告)号：US20250067936A1
公开(公告)日：2025-02-27
申请号：US18943669
申请日：2024-11-11
Applicant: PsiQuantum Corp.
Inventor： Hugo V. Cable , Damien Bonneau , Hsuan-Tung Peng , Bryan S. Park , Andrzej Perez Veitia , Sara Bartolucci , Eric Dudley , Mihai Vidrighin
IPC: G02B6/28
Abstract: An example photonic integrated circuit (PIC) includes a plurality of input ports to input light, such as a quantum state of light that comprises one or more photons, into the PIC. In addition, the PIC may include a waveguide network that includes a crossing network to combine light, and optical couplers that are coupled to the crossing network. The PIC can further include output ports to output the light.
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公开(公告)号：US20250004218A1
公开(公告)日：2025-01-02
申请号：US18692978
申请日：2022-09-19
Applicant: PSIQUANTUM CORP.
Inventor： Eric DUDLEY , Jin YAO , Nathan A. NUTTALL
Abstract: An optical device includes an optical fiber and an optical die connected to the optical fiber. The optical fiber includes a core layer, a cladding layer formed on the core layer, and a first portion of a fiber alignment structure formed on the cladding layer. The optical die includes a die main body, an optical waveguide located in the die main body, and a second portion of the fiber alignment structure formed on the die main body and mated to the first portion of the fiber alignment structure so as to align the core layer of the optical fiber with the optical waveguide.
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公开(公告)号：US12176672B2
公开(公告)日：2024-12-24
申请号：US17239085
申请日：2021-04-23
Applicant: Psiquantum, Corp.
Inventor： Eric Dudley , Yong Liang , Faraz Najafi , Vimal Kamineni , Ann Melnichuk
Abstract: An optical device includes a substrate, a dielectric layer on the substrate, a waveguide within the dielectric layer, a light sensitive component (e.g., a photodetector) in the dielectric layer and coupled to the waveguide, and a plurality of light isolation structures in at least one of the substrate or the dielectric layer and configured to prevent stray light from reaching the light sensitive component. In some embodiments, a light isolation structure in the plurality of light isolation structures includes two opposing sidewalls and a filling material between the two opposing sidewalls. The two opposing sidewalls include an optical isolation layer. The filling material is characterized by a coefficient of thermal expansion (CTE) matching a CTE of at least one of the substrate or the dielectric layer.
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公开(公告)号：US12169672B2
公开(公告)日：2024-12-17
申请号：US17114143
申请日：2020-12-07
Applicant: PSIQUANTUM CORP.
Inventor： Eric Roy Johnston
Abstract: Computer systems and methods are provided for increasing a rate of simulation for quantum computing devices. A quantum computing device includes a plurality of gates, each of which is coupled to one or more modes. In the provided computer systems and methods, a device definition and state information for the quantum computing device are received. The state information includes a plurality of input patterns, each of which indicates a number of input bosons that correspond to a respective mode of the quantum computing device, and an amplitude that corresponds to each input pattern. The device definition includes a plurality of sets of gate values that indicate modification by a respective gate of an input pattern probability. A first group of input patterns is generated for a first gate. The first group of input patterns includes a subset of the plurality of input patterns that meet grouping criteria.
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公开(公告)号：US20240410749A1
公开(公告)日：2024-12-12
申请号：US18669307
申请日：2024-05-20
Applicant: PsiQuantum Corp.
Inventor： Faraz Najafi , Eric Dudley , Mark Thompson
Abstract: A method of resolving a number of photons received by a photon detector includes optically coupling a waveguide to a superconducting wire having alternating narrow and wide portions; electrically coupling the superconducting wire to a current source; and electrically coupling an electrical contact in parallel with the superconducting wire. The electrical contact has a resistance less than a resistance of the superconducting wire while at least one narrow portion of the superconducting wire is in a non-superconducting state. The method includes providing to the superconducting wire, from the current source, a current configured to maintain the superconducting wire in a superconducting state in the absence of incident photons; receiving one or more photons via the waveguide; measuring an electrical property of the superconducting wire, proportional to a number of photons incident on the superconducting wire; and determining the number of received photons based on the electrical property.
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Patent Agency Ranking
公开(公告)号：US12164891B2
公开(公告)日：2024-12-10
申请号：US18108561
申请日：2023-02-10
Applicant: Psiquantum, Corp.
Inventor： Daniel Litinski
Abstract: A fault-tolerant quantum computer using topological codes such as surface codes can have an architecture that reduces the amount of idle volume generated. The architecture can include qubit modules that generate surface code patches for different qubits and a network of interconnections between different qubit modules. The interconnections can include “port” connections that selectably enable coupling of boundaries of surface code patches generated in different qubit modules and/or “quickswap” connections that selectably enable transferring the state of a surface code patch from one qubit module to another. Port and/or quickswap connections can be made between a subset of qubit modules. For instance port connections can connect a given qubit module to other qubit modules within a fixed range. Quickswap connections can provide a log-tree network of direct connections between qubit modules.
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公开(公告)号：US20240405888A1
公开(公告)日：2024-12-05
申请号：US18695804
申请日：2022-09-28
Applicant: PSIQUANTUM, CORP.
Inventor： Terence Rudolph , Hugo Cable
Abstract: Circuits and methods can implement reconfigurable spatial rearrangement (also referred to as “spatial multiplexing”) for a group of photons propagating in waveguides. For instance, two sets of small optical multiplexer circuits (such as two sets of 2×2 optical multiplexer circuits or two sets of 3×3 optical multiplexer circuits) can be used to rearrange a pattern of photons on a first set of waveguides into a usable input pattern for a downstream optical circuit.
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公开(公告)号：US12149242B1
公开(公告)日：2024-11-19
申请号：US18589993
申请日：2024-02-28
Applicant: PsiQuantum, Corp.
Inventor： Mercedes Gimeno-Segovia , Christopher Sparrow , Ilya Vorobeichik
Abstract: A modular quantum entanglement processing system can include a plurality of seed state systems, resource state systems, and fusion systems that can be ordered in different arrangements. The systems can be composed of modular assemblies or chips, such that the systems can be modularized and extended to perform entanglement based processing of tasks in a scalable manner. Some of the assemblies or chips of the different systems can be designed to operate at cryogenic temperatures, such as detector, while other assemblies or chips of the different systems can operate at room temperature, where the different chip types can be coupled to one another using fiber optic cables.
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公开(公告)号：US20240353734A1
公开(公告)日：2024-10-24
申请号：US18394124
申请日：2023-12-22
Applicant: Psiquantum, Corp.
Inventor： Albert Wang
CPC classification number: G02F1/3526 , G01J1/0488 , G01J1/44 , G06F1/06 , G06N10/00 , H03K3/38 , H03K3/42 , G01J2001/4238 , G01J2001/4413
Abstract: A system for generating clock signals for a photonic quantum computing system includes a first pump photon source, a first photon-pair source optically coupled to the first pump photon source, and a first photodetector optically coupled to the first photon-pair source. The system also includes a first clock generator electrically coupled to the first photodetector, a second pump photon source, a second photon-pair source optically coupled to the second pump photon source, and a second photodetector optically coupled to the second photon-pair source. The system further includes a second clock generator electrically coupled to the second photodetector and a clock mediator coupled to the first clock generator and the second clock generator.
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公开(公告)号：US12119820B2
公开(公告)日：2024-10-15
申请号：US18387402
申请日：2023-11-06
Applicant: PsiQuantum Corp.
Inventor： Faraz Najafi , Qiaodan Jin Stone
IPC: H03K19/195 , G01J1/44 , H10N60/30 , H10N60/84
CPC classification number: H03K19/195 , G01J1/44 , H10N60/30 , H10N60/84 , G01J2001/442
Abstract: A programmable circuit includes a superconducting multi-dimensional array. The programmable circuit further includes a plurality of photon detectors coupled to respective portions of the superconducting multi-dimensional array, each photon detector configured to selectively provide input to a corresponding respective portion sufficient to transition the corresponding respective portion from a superconducting state to a non-superconducting state. The programmable circuit also includes one or more electrical terminals coupled to respective second portions of the superconducting multi-dimensional array.
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