公开(公告)号：US20240302708A1

公开(公告)日：2024-09-12

申请号：US18378572

申请日：2023-10-10

Applicant: PsiQuantum Corp.

Inventor： Mihai Vidrighin ,  Nikhil Kumar ,  Gary Gibson

IPC: G02F1/313 ,  G02B6/12 ,  G02B6/35

CPC classification number: G02F1/3138 ,  G02B6/12007 ,  G02B6/354 ,  G02F1/3132 ,  G02B2006/12145 ,  G02B2006/12147

Abstract: An optical device includes a first waveguide that includes a plurality of first portions coupled with regions doped with first dopants, and a plurality of second portions coupled with regions doped with second dopants, distinct from the first dopants, the plurality of first portions being interleaved with the plurality of second portions. And the optical device includes a second waveguide located adjacent to the first waveguide for coupling light from the first waveguide to the second waveguide. The second waveguide includes a third portion coupled with a third region doped with the first dopants and a fourth portion coupled with a fourth region doped with the second dopants, wherein the first portion is located adjacent to the third portion and the second portion is located adjacent to the fourth portion.

公开(公告)号：US12056571B2

公开(公告)日：2024-08-06

申请号：US16979829

申请日：2019-03-11

Applicant: PSIQUANTUM CORP.

Inventor： Naomi Nickerson ,  Hector Bombin Palomo

IPC: G06N10/00 ,  B82Y10/00 ,  G06F18/232

CPC classification number: G06N10/00 ,  B82Y10/00 ,  G06F18/232

Abstract: A method includes obtaining a first qubit entangled with second, third, fourth, fifth, sixth, and seventh qubits and one or more of: an eighth qubit entangled with the second qubit and the seventh qubit; a ninth qubit entangled with the third qubit and the fourth qubit; a tenth qubit entangled with the fifth qubit and the sixth qubit; an eleventh qubit entangled with the eighth qubit and the ninth qubit; a twelfth qubit entangled with the eighth qubit and the ninth qubit; a thirteenth qubit entangled with the eighth qubit and the tenth qubit; a fourteenth qubit entangled with the eighth qubit and the tenth qubit; a fifteenth qubit entangled with the ninth qubit and the tenth qubit; and a sixteenth qubit entangled with the ninth qubit and the tenth qubit. Also disclosed are additional methods of obtaining a plurality of entangled qubits.

公开(公告)号：US20240231181A9

公开(公告)日：2024-07-11

申请号：US18383415

申请日：2023-10-24

Applicant: Psiquantum, Corp.

Inventor： Mihai Dorian Vidrighin ,  Dylan Saunders

IPC: G02F1/35 ,  G02F1/365

CPC classification number: G02F1/3526 ,  G02F1/3536 ,  G02F1/365 ,  G02F2201/06

Abstract: A frequency conversion system includes a bus waveguide, a first pump laser coupled to the bus waveguide and characterized by a first frequency, a second pump laser coupled to the bus waveguide and characterized by a second frequency, an input light combining device coupled to the bus waveguide and configured to combine light from the first pump laser and the second pump laser to produce a combined light, and a plurality of optical resonators coupled to the bus waveguide. Each optical resonator of the plurality of optical resonators has a respective resonance line width, wherein for each optical resonators of the plurality the respective resonance line width overlaps with a resonance line width of at least one adjacent optical resonator of the plurality of optical resonators, and wherein each optical resonator of the plurality is configured to generate output light at a converted frequency via frequency mixing.

公开(公告)号：US12026587B2

公开(公告)日：2024-07-02

申请号：US17725790

申请日：2022-04-21

Applicant: PsiQuantum, Corp.

Inventor： Mihir Pant

IPC: G06N10/00 ,  G06F11/10 ,  G06N3/08 ,  G06F3/06 ,  H10N99/00

CPC classification number: G06N10/00 ,  G06F11/1004 ,  G06N3/08 ,  G06F3/0604 ,  G06F3/0659 ,  G06F3/0679 ,  H10N99/05

Abstract: A quantum computing system and methods for performing fault-tolerant quantum computing. A fusion controller sequentially performs a series of fusion measurements on different fusion sites of a plurality of fusion sites to obtain a respective series of classical measurement results. The series of fusion measurements is performed on quantum modes of a logical qubit. For respective fusion measurements of the series of fusion measurements, a basis for performing the respective fusion measurement is selected based on classical measurement results of previous fusion measurements. The series of classical measurement results are in the memory medium.

公开(公告)号：US20240204784A1

公开(公告)日：2024-06-20

申请号：US18416806

申请日：2024-01-18

Applicant: PsiQuantum Corp.

Inventor： Faraz Najafi

IPC: H03K19/195 ,  H03K19/17728 ,  H03K19/17736 ,  H03K19/17784

CPC classification number: H03K19/195 ,  H03K19/17728 ,  H03K19/17744 ,  H03K19/17784

Abstract: The various embodiments described herein include methods, devices, and systems for operating superconducting circuitry. In one aspect, a programmable circuit includes a configurable superconducting component and control circuitry coupled to the configurable superconducting component. The superconducting component includes an input terminal, an output terminal, and a plurality of gate terminals. The control circuitry is coupled to the superconducting component via the plurality of gate terminals. The control circuitry is adapted to selectively transition portions of the superconducting component from a superconducting state to a non-superconducting state. The control circuitry is configured to operate the superconducting component in a first configuration in which the programmable circuit is configured to perform a first function. The control circuitry is further configured to operate the superconducting component in a second configuration in which the programmable circuit is configured to perform a second function, distinct from the first function.

公开(公告)号：US11994758B1

公开(公告)日：2024-05-28

申请号：US18142419

申请日：2023-05-02

Applicant: Psiquantum, Corp.

Inventor： Gary Gibson

IPC: G02F1/035 ,  G02F1/21 ,  G02F1/225

CPC classification number: G02F1/035 ,  G02F1/225 ,  G02F1/212 ,  G02F2202/105

Abstract: An optical switch structure includes a substrate, a first electrical contact, and a first material having a first conductivity type electrically connected to the first electrical contact. The optical switch structure also includes a second material having a second conductivity type coupled to the first material, a second electrical contact electrically connected to the second material, and a waveguide structure disposed between the first electrical contact and the second electrical contact. The waveguide structure includes a waveguide core coupled to the substrate and including a core material characterized by a first index of refraction and a waveguide cladding at least partially surrounding the waveguide core and including a cladding material characterized by a second index of refraction less than the first index of refraction and an isotope-enhanced Pockels effect.

公开(公告)号：US11994426B1

公开(公告)日：2024-05-28

申请号：US17098235

申请日：2020-11-13

Applicant: PsiQuantum Corp.

Inventor： Faraz Najafi ,  Eric Dudley

IPC: G01J1/44 ,  G01J1/42 ,  G06N10/00 ,  H10N60/30 ,  H10N60/84 ,  H10N69/00

CPC classification number: G01J1/44 ,  G01J1/4228 ,  G06N10/00 ,  H10N60/30 ,  H10N60/84 ,  H10N69/00 ,  G01J2001/442 ,  G01J2001/4473

Abstract: A photon counting device includes unit cells, a bias current source coupled to the unit cells, and a waveguide coupled to the unit cells. Each unit cell includes photodetector(s). Each photodetector includes superconducting component(s) and a transistor. The transistor includes a superconducting gate that is coupled in parallel with the photodetector(s), and a channel that is electrically isolated from the superconducting gate. For each unit cell, a photodetector is optically coupled to the waveguide. A superconducting component is configured to transition from the superconducting state to the non-superconducting state in response to a photon being incident upon the superconducting component while the superconducting component receives at least a portion of bias current output from the bias current source. The superconducting gate of the unit cell is configured to transition from the superconducting state to the non-superconducting state in response to the superconducting component transitioning to the non-superconducting state.

公开(公告)号：US20240169239A1

公开(公告)日：2024-05-23

申请号：US18108547

申请日：2023-02-10

Applicant: Psiquantum, Corp.

Inventor： Daniel Litinski

IPC: G06N10/40 ,  G06N10/20 ,  G06N10/70

CPC classification number: G06N10/40 ,  G06N10/20 ,  G06N10/70

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.

公开(公告)号：US20240168731A1

公开(公告)日：2024-05-23

申请号：US18108561

申请日：2023-02-10

Applicant: Psiquantum, Corp.

Inventor： Daniel Litinski

IPC: G06F8/41 ,  G06N10/70

CPC classification number: G06F8/41 ,  G06N10/70

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.

公开(公告)号：US11953729B2

公开(公告)日：2024-04-09

申请号：US18106220

申请日：2023-02-06

Applicant: PsiQuantum, Corp.

Inventor： Nikhil Kumar

IPC: G02B6/293 ,  G02B6/27 ,  G02B6/35 ,  G02F1/21

CPC classification number: G02B6/29353 ,  G02B6/2766 ,  G02B6/3502 ,  G02F1/212

Abstract: Photonic devices are disclosed including a first cladding layer, a first electrical contact comprising a first lead coupled to a first dielectric portion, a second electrical contact comprising a second lead coupled to a second dielectric portion, a waveguide structure comprising a slab layer comprising a first material, and a second cladding layer. The slab layer may be coupled to the first dielectric portion of the first electrical contact and the second dielectric portion of the second electrical contact. The first dielectric portion and the second dielectric portion may have a dielectric constant greater than a dielectric constant of the first material.