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公开(公告)号：US20250068001A1
公开(公告)日：2025-02-27
申请号：US18943708
申请日：2024-11-11
Applicant: PsiQuantum Corp.
Inventor： Chia-Ming Chang
Abstract: The various embodiments described herein include a phase shifter that can have a first electrode that has a distributed shape. The phase shifter can include a second electrode. The phase shifter can include an optical waveguide between the first electrode and the second electrode. Further, the phase shifter can include an active electro-optical material that propagates light, and phase shifts the light.
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公开(公告)号：US12239029B2
公开(公告)日：2025-02-25
申请号：US18520462
申请日：2023-11-27
Applicant: PsiQuantum Corp.
Inventor： Faraz Najafi
Abstract: A device includes a superconductor layer and a piezoelectric layer positioned adjacent to the superconductor layer. The piezoelectric layer is configured to apply a first strain to the superconductor layer in response to receiving a first voltage that is below a predefined voltage threshold and to apply a second strain to the superconductor layer in response to receiving a second voltage that is above the predefined voltage threshold. While the device is maintained below a superconducting threshold temperature for the superconductor layer and is supplied with current below a superconducting threshold current for the superconductor layer, the superconductor layer is configured to 1) operate in a superconducting state when the piezoelectric layer applies the first strain to the superconductor layer and 2) operate in an insulating state when the piezoelectric layer applies the second strain to the superconductor layer.
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公开(公告)号：US20250053843A1
公开(公告)日：2025-02-13
申请号：US18722551
申请日：2022-12-23
Applicant: Psiquantum, Corp.
Inventor： Mihir Pant
Abstract: A quantum repeater circuit can include a resource state interconnect circuit that outputs one resource state per clock cycle, with each resource state having a number of entangled qubits. The circuit can also include circuits and delay lines to perform entangling measurement operations on qubits of resource states generated by the same resource state generator in different clock cycles. The circuit can be operated as a quantum repeater that receives an encoded logical qubit and produces a reduced-noise version of the encoded logical qubit.
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公开(公告)号：US12198926B2
公开(公告)日：2025-01-14
申请号：US17377135
申请日：2021-07-15
Applicant: Psiquantum, Corp.
Inventor： Yong Liang , Ann Melnichuk
IPC: H01L21/02 , H01L21/683
Abstract: In some embodiments a method comprises depositing a first silicon nitride layer on a top surface of a semiconductor wafer and forming one or more first gaps in the first silicon nitride layer. The one or more first gaps can relieve stress formed in the first silicon nitride layer. A first fill material is deposited on the first silicon nitride layer and the first silicon nitride layer is planarized. A second silicon nitride layer is deposited across the first silicon nitride layer and one or more second gaps are formed in the second silicon nitride layer. The one or more second gaps can relieve stress formed in the second silicon nitride layer. A second fill material is deposited across the second silicon nitride layer and the second silicon nitride layer is planarized.
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公开(公告)号：US12189261B2
公开(公告)日：2025-01-07
申请号：US17858699
申请日：2022-07-06
Applicant: Psiquantum, Corp.
Inventor： Hugo Cable
Abstract: Photons can propagate concurrently in two different directions along optical paths in a generalized Mach Zehnder interferometer (GMZI). A counterpropagating GMZI can include a first set of input ports and a second set of input ports, a first set of output ports and a second set of output ports, and optical components interconnected to form a GMZI that can selectably establish a first optical path between one of the first set of input ports and one of the first set of output ports and a second optical path between one of the second set of input ports and one of the second set of output ports. The first optical path and the second optical path can include an overlapping portion though which photons on the first and second optical paths propagate in opposing directions.
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Patent Agency Ranking
公开(公告)号：US20240428103A1
公开(公告)日：2024-12-26
申请号：US18793233
申请日：2024-08-02
Applicant: PsiQuantum Corp.
Inventor： Naomi Nickerson , Terence Rudolph
Abstract: A method for obtaining a plurality of entangled qubits represented by a lattice structure that includes a plurality of contiguous lattice cells. A respective edge of a respective lattice cell corresponds to one or more edge qubits, and a respective face of the respective lattice cell corresponding to one or more face qubits. Each face qubit is entangled with adjacent edge qubits. A first face of the respective lattice cell corresponds to two or more face qubits, and/or a first edge corresponds to two or more edge qubits. A device for obtaining the plurality of entangled qubits represented by the above-described lattice structure is also described.
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公开(公告)号：US20240413824A1
公开(公告)日：2024-12-12
申请号：US18439641
申请日：2024-02-12
Applicant: PSIQUANTUM CORP.
Inventor： Faraz NAJAFI , Qiaodan JIN STONE
IPC: H03K19/195 , G01J1/44 , H10N60/30 , H10N60/84
Abstract: An example circuit includes a superconducting component having a plurality of narrow portions and a plurality of wide portions. The example circuit further includes a plurality of photon detector components, each photon detector component coupled to a corresponding narrow portion of the plurality of narrow portions and configured to provide an output that causes the corresponding narrow portion to transition from a superconducting state to a non-superconducting state. The example circuit also includes an output component coupled to the superconducting component, the output component configured to determine a number of the plurality of narrow portions of the superconducting component that are in the non-superconducting state.
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公开(公告)号：US20240361663A1
公开(公告)日：2024-10-31
申请号：US18763346
申请日：2024-07-03
Applicant: PsiQuantum Corp.
Inventor： Mihai Vidrighin , Nikhil Kumar , Gary Gibson
CPC classification number: G02F1/3138 , G02B6/12007 , G02B6/354 , G02F1/3132 , G02B2006/12145 , G02B2006/12147
Abstract: A method includes propagating light in a first waveguide of a 1×2 optical switch. The first waveguide is adjacent to a second waveguide in a coupling region. The 1×2 optical switch comprising an input to receive the light and couple the light to the first waveguide. The 1×2 optical switch further comprising a first output to output light from the first waveguide and a second output to output the light from the second waveguide. The method further includes coupling the light to the first output and the second output based on absorption values of the second waveguide in the coupling region; adjusting absorption values of the second waveguide in the coupling region such that light is directed from the input to only the first output; and coupling light to only the first output based on the adjusted absorption values of the second waveguide in the coupling region.
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公开(公告)号：US20240357946A1
公开(公告)日：2024-10-24
申请号：US18520462
申请日：2023-11-27
Applicant: PsiQuantum Corp.
Inventor： Faraz Najafi
Abstract: A device includes a superconductor layer and a piezoelectric layer positioned adjacent to the superconductor layer. The piezoelectric layer is configured to apply a first strain to the superconductor layer in response to receiving a first voltage that is below a predefined voltage threshold and to apply a second strain to the superconductor layer in response to receiving a second voltage that is above the predefined voltage threshold. While the device is maintained below a superconducting threshold temperature for the superconductor layer and is supplied with current below a superconducting threshold current for the superconductor layer, the superconductor layer is configured to 1) operate in a superconducting state when the piezoelectric layer applies the first strain to the superconductor layer and 2) operate in an insulating state when the piezoelectric layer applies the second strain to the superconductor layer.
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公开(公告)号：US20240310582A1
公开(公告)日：2024-09-19
申请号：US18122392
申请日：2023-03-16
Applicant: Psiquantum, Corp.
Inventor： Bryan Park , Koustuban Ravi , Eric Dudley , Mihai Dorian Vidrighin
IPC: G02B6/293
CPC classification number: G02B6/29355
Abstract: A notch filter circuit includes a wavelength demultiplexer, a first pump rejection filter coupled to the wavelength demultiplexer, and a second pump rejection filter coupled to the wavelength demultiplexer. The notch filter circuit also includes a first notch filter arm coupled to the first pump rejection filter and including a first chain of asymmetric Mach-Zehnder interferometers (MZIs) and a second notch filter arm coupled to the second pump rejection filter and including a second chain of asymmetric MZIs.
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