公开(公告)号：US20240096799A1

公开(公告)日：2024-03-21

申请号：US18518394

申请日：2023-11-22

Applicant: PsiQuantum Corp.

Inventor： Faraz Najafi ,  Vitor Riseti Manfrinato

IPC: H01L23/528 ,  H10N60/83 ,  H10N69/00

CPC classification number: H01L23/5283 ,  H10N60/83 ,  H10N69/00 ,  H01L23/53285

Abstract: A superconducting circuit includes a photon detector component, a second component, and a multi-taper superconducting connector shaped to reduce current crowding, the superconducting connector electrically connecting the photon detector component and the second component. The multi-taper superconducting connector includes a first taper arranged adjacent the photon detector component and a second taper arranged adjacent the second component.

公开(公告)号：US20240085631A1

公开(公告)日：2024-03-14

申请号：US18370785

申请日：2023-09-20

Applicant: PsiQuantum, Corp. ,  The University of Bristol

Inventor： Damien Bonneau ,  Mark Thompson

IPC: G02B6/28 ,  G02B6/26 ,  H01P9/00

CPC classification number: G02B6/2861 ,  G02B6/262 ,  H01P9/00

Abstract: An optical device includes a first multi-mode waveguide, a first optical coupler coupled to the first multi-mode waveguide, the first coupler being tapered and curved, and a first single-mode waveguide having a first end coupled to the first optical coupler. The optical device maybe used in an optical delay device. A method of propagating light in a first multi-mode waveguide toward a first optical coupler, propagating the light in the first optical coupler toward a first single-mode waveguide, the first optical coupler being tapered and curved, and propagating the light along the first single-mode waveguide is also disclosed.

公开(公告)号：US20240080029A1

公开(公告)日：2024-03-07

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.

公开(公告)号：US11892693B1

公开(公告)日：2024-02-06

申请号：US17951916

申请日：2022-09-23

Applicant: Psiquantum, Corp.

Inventor： Gabriel J. Mendoza ,  Matteo Staffaroni ,  Albert Wang ,  John Eugene Berg ,  Ramakanth Alapati

IPC: G02B6/43 ,  H01L25/065 ,  G02B6/12 ,  H01L23/00 ,  G06N10/00

CPC classification number: G02B6/43 ,  G02B6/12002 ,  G06N10/00 ,  H01L24/47 ,  H01L25/0657 ,  G02B2006/12061

Abstract: A device includes a die stack including a first die including a quantum circuit and a second die including an electronic circuit. The second die and the first die face each other. The device also includes a first interconnect between the quantum circuit and the electronic circuit and a second interconnect between the quantum circuit and the electronic circuit.

公开(公告)号：US11880115B2

公开(公告)日：2024-01-23

申请号：US17481045

申请日：2021-09-21

Applicant: Psiquantum, Corp.

Inventor： Albert Wang

IPC: G01J1/44 ,  G02F1/35 ,  G01J1/04 ,  G06N10/00 ,  G06F1/06 ,  H03K3/38 ,  H03K3/42 ,  G01J1/42

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 pump photon source configured to generate a plurality of pump photon pulses at a first repetition rate, a waveguide optically coupled to the pump photon source, and a photon-pair source optically coupled to the first waveguide. The system also includes a photodetector optically coupled to the photon-pair source and configured to generate a plurality of electrical pulses in response to detection of at least a portion of the plurality of pump photon pulses at the first repetition rate and a clock generator coupled to the photodetector and configured to convert the plurality of electrical pulses into a plurality of clock signals at the first repetition rate.

公开(公告)号：US11874496B2

公开(公告)日：2024-01-16

申请号：US17987741

申请日：2022-11-15

Applicant: Psiquantum, Corp.

Inventor： Koustuban Ravi ,  Mark Thompson ,  Eric Dudley

IPC: G02B6/02 ,  G02B6/122 ,  G02B6/13 ,  G02B6/293 ,  G02B6/12

CPC classification number: G02B6/12007 ,  G02B6/1228 ,  G02B6/13 ,  G02B6/29355 ,  G02B2006/12061

Abstract: A photonic switch includes a first waveguide including a first region extending between a first coupler section and a second coupler section and a second region extending between the second coupler section and a third coupler section. The photonic switch also includes a second waveguide including a first portion extending between the first coupler section and the second coupler section, the first portion including at least two first compensation sections each having a different waveguide width, and a second portion extending between the second coupler section and the third coupler section, the second portion including at least two second compensation sections each having a different waveguide width. The photonic switch further includes at least one variable phase-shifter disposed in at least one of the first waveguide or the second waveguide.

公开(公告)号：US11832532B2

公开(公告)日：2023-11-28

申请号：US16798195

申请日：2020-02-21

Applicant: PsiQuantum Corp.

Inventor： Faraz Najafi

IPC: H01L41/04 ,  H01L39/10 ,  H10N60/84 ,  H10N60/01 ,  H10N60/30 ,  H10N60/85

CPC classification number: H10N60/84 ,  H10N60/01 ,  H10N60/30 ,  H10N60/85

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.

公开(公告)号：US11830811B2

公开(公告)日：2023-11-28

申请号：US17408309

申请日：2021-08-20

Applicant: PsiQuantum Corp

Inventor： Faraz Najafi ,  Vitor Riseti Manfrinato

IPC: H01L23/528 ,  H10N60/83 ,  H10N69/00 ,  H01L23/532 ,  H10N60/84 ,  H10N60/85

CPC classification number: H01L23/5283 ,  H10N60/83 ,  H10N69/00 ,  H01L23/53285 ,  H10N60/84 ,  H10N60/855

Abstract: A superconducting circuit includes a first component having a first connection point. The first connection point has a first width. The superconducting circuit includes a second component having a second connection point. The second connection point has a second width that is larger than the first width. The superconducting circuit includes a superconducting connector shaped to reduce current crowding. The superconducting connector electrically connects the first connection point and the second connection point. The superconducting connector includes a first taper positioned adjacent the first connection point and having a non-linear shape and a second taper positioned adjacent the second connection point.

公开(公告)号：US11811394B2

公开(公告)日：2023-11-07

申请号：US17838917

申请日：2022-06-13

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 component arranged in a multi-dimensional array of alternating narrow and wide portions. The programmable circuit further includes a plurality of heat sources, each heat source configured to selectively provide heat to a respective narrow portion sufficient to transition the respective narrow portion from a superconducting state to a non-superconducting state. The programmable circuit further includes a plurality of electrical terminals, each electrical terminal coupled to a respective wide portion of the multi-dimensional array.

公开(公告)号：US11742956B2

公开(公告)日：2023-08-29

申请号：US17849440

申请日：2022-06-24

Applicant: PSIQUANTUM CORP.

Inventor： Mercedes Gimeno-Segovia ,  Terence G. Rudolph

IPC: H04B10/00 ,  H04B10/70 ,  G06N10/00 ,  H04B10/61 ,  H04J14/00

CPC classification number: H04B10/70 ,  G06N10/00 ,  H04B10/614

Abstract: A method includes receiving Bell pairs. Photons are obtained in a Greenberger-Horn-Zeilinger (GHZ) state by providing, to a first beam splitter, a photon from a first Bell pair and a photon from a second Bell pair. The first beam splitter is coupled with a first output channel and a second output channel. Obtaining the photons in the GHZ state further includes providing, to a second beam splitter, a photon from a third Bell pair and a photon from a fourth Bell pair. The second beam splitter is coupled with a third output channel and a fourth output channel. Obtaining the photons in the GHZ state further includes providing a photon output from the second output channel as a first input to a detector and a photon output in the third output channel a second input to the first detector.