IP Library › Granted Patent US 12,190,205
Granted Patent B2
US 12,190,205 · App. 18/299,827 · Granted Jan 7, 2025

Heralding-free connections in quantum computing

Inventors: Gil Semo (Tel-Aviv, IL); Ziv Aqua (Rehovot, IL); Oded Melamed (Shoham, IL); Dan Charash (Herzliya, IL); Serge Rosenblum (Rehovot, IL); Barak Dayan (Tel-Aviv, IL)
Assignees: Yeda Research and Development Co. Ltd.; Quantum Source Labs Ltd.
G06N10/40G06N10/20H01L29/66977H01L33/06
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Quick Facts
Patent No.
US 12,190,205
App. No.
18/299,827
Granted
Jan 7, 2025
Kind
B2
Abstract

Systems and methods for a quantum computing include a plurality of photonic processing stages, a plurality of heralding-free connections, and circuitry configured to regulate photon flow between adjacent stages such that decisions about stage settings or flow between adjacent stages are free of input from a previous stage. Each heralding-free connection is located between adjacent photonic processing stages. Each photonic processing stage includes at least two of an optical switch, a beam splitter, a waveguide or a photon generator. Methods include transmitting or receiving a plurality of photons via a plurality of heralding-free connections, and regulating photon flow between adjacent stages such that decisions about stage settings or flow between adjacent stages are free of input from a previous stage.

Claims (33)

1. A quantum computing system, comprising:

a plurality of photonic processing stages, wherein each photonic processing stage includes at least two of an optical switch, a beam splitter, a waveguide or a photon generator;

a plurality of heralding-free connections, each connection being located between adjacent photonic processing stages; and

circuitry configured to regulate photon flow between adjacent stages such that decisions about stage settings or flow between adjacent stages are free of input from a previous stage.

2. The system of claim 1 , wherein the photonic processing stages are separated in a time domain.

3. The system of claim 1 , wherein the photonic processing stages are separated in a spatial domain.

4. The system of claim 1 , wherein decisions about stage settings include settings of the optical switch.

5. The system of claim 1 , wherein the optical switch includes a phase shifter.

6. The system of claim 5 , wherein the decisions about stage settings include settings of the phase shifter.

7. The system of claim 1 , wherein the photon generator includes a quantum emitter coupled to a resonator.

8. The system of claim 1 , wherein at least some of the photonic processing stages include a quantum emitter.

9. The system of claim 8 , wherein the quantum emitter is coupled to a resonator.

10. The system of claim 9 , wherein the quantum emitter is configured to:

entangle a quantum emitter qubit to a photonic qubit when a photonic qubit is transmitted toward the quantum emitter;

map the quantum emitter qubit to a photonic qubit when the photonic qubit is transmitted toward the quantum emitter; or

mediate interactions between consecutive incoming photonic qubits to generate a graph state.

11. The system of claim 8 , wherein the quantum emitter includes a stationary qubit capable of interacting with photons.

12. The system of claim 8 , wherein the quantum emitter includes a superconducting qubit.

13. The system of claim 8 , wherein the quantum emitter includes a quantum dot.

14. The system of claim 8 , wherein the quantum emitter includes at least one of a neutral atom or an ion.

15. The system of claim 14 , wherein the atom is a rubidium atom or the ion is a rubidium ion.

16. The system of claim 14 , wherein the atom is a cesium atom or the ion is a cesium ion.

17. The system of claim 8 , wherein the quantum emitter includes at least one of Strontium, Erbium, Ytterbium, Calcium, Barium, Beryllium, or Magnesium atom.

18. A quantum computing method, comprising:

transmitting or receiving a plurality of photons via a plurality of heralding-free connections, each connection being located between adjacent photonic processing stages, wherein each photonic processing stage includes at least two of an optical switch, a beam splitter, a waveguide, or a photon generator; and

regulating photon flow between adjacent stages such that decisions about stage settings or flow between adjacent stages are free of input from a previous stage.

19. The method of claim 18 , wherein at least some of the photonic processing stages include a quantum emitter coupled to a resonator, and the method further comprises:

entangling a quantum emitter qubit to a photonic qubit when the photonic qubit is transmitted toward the quantum emitter;

mapping a quantum emitter qubit to a photonic qubit when the photonic qubit is transmitted toward the quantum emitter; or

mediating interactions between consecutive incoming photonic qubits to generate a graph state.

20. A non-transitory computer-readable medium including instructions that, when executed by at least one processor, cause the at least one processor to carry out a quantum computing method, comprising:

transmitting or receiving a plurality of photons via a plurality of heralding-free connections, each connection being located between adjacent photonic processing stages, wherein each photonic processing stage includes at least two of an optical switch, a beam splitter, a waveguide, or a photon generator; and

regulating photon flow between adjacent stages such that decisions about stage settings or flow between adjacent stages are free of input from a previous stage.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 15, 2024
From: DAYAN, BARAK; AQUA, ZIV
To: YEDA RESEARCH AND DEVELOPMENT CO. LTD.
Reel/Frame 066786/0148 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 14, 2024
From: SEMO, GIL; MELAMED, ODED; CHARASH, DAN
To: QUANTUM SOURCE LABS LTD.
Reel/Frame 066766/0862 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 14, 2024
From: AQUA, ZIV; ROSENBLUM, SERGE; DAYAN, BARAK
To: YEDA RESEARCH AND DEVELOPMENT CO. LTD.
Reel/Frame 066766/0872 →
Priority Claims (1)
IL 282705 · Apr 27, 2021 · national
Continuity (3)
Continuation PCTIB2022000564 · Apr 27, 2022
Provisional Application 63320454 · Mar 16, 2022
Related Publication 20240346354A1 · Oct 17, 2024
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