Modular quantum resource state system
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.
1 . A system comprising:
a first plurality of optical interconnects to receive qubits of a plurality of seed entangled states, the plurality of seed entangled states further comprising other qubits on other optical interconnects that are coupled to one or more external devices;
a non-cryogenic structure comprising a plurality of resource state interference circuits to interfere the qubits of the plurality of seed entangled states;
a cryogenic structure comprising a plurality of detectors;
a second plurality of optical interconnects to couple interfered qubits from the plurality of resource state interference circuits that are in the non-cryogenic structure to the plurality of detectors that are in the cryogenic structure, the plurality of detectors generating resource state readout data from the plurality of detectors; and
control circuitry configured to:
determine, from the resource state readout data, that a plurality of resource entangled states comprises the other qubits that are on the other optical interconnects, the plurality of seed entangled states and the plurality of resource entangled states being different types of entangled states.
2 . The system of claim 1 , wherein the plurality of seed entangled states are generated by a plurality of additional devices that output the plurality of seed entangled states to the first plurality of optical interconnects.
3 . The system of claim 2 , wherein the plurality of additional devices comprises photonic devices that output the plurality of seed entangled states as photonic entangled states.
4 . The system of claim 3 , wherein the photonic entangled states comprise one or more of: one or more photonic Bell Pairs, one or more photonic Greenberger-Horne-Zeilinger (GHZ) states.
5 . The system of claim 1 , wherein a seed entangled state comprises a first quantity of entangled qubits and wherein a resource entangled state comprises a second quantity of qubits that is different than the first quantity of qubits.
6 . The system of claim 5 , wherein the second quantity of qubits of the resource entangled state is larger than the first quantity of qubits of the seed entangled state.
7 . The system of claim 1 , further comprising a plurality of optical switches coupled between the plurality of resource state interference circuits and the first plurality of optical interconnects.
8 . The system of claim 7 , wherein a plurality of additional devices generates the plurality of seed entangled states, wherein the plurality of optical switches is configurable to couple different sets of additional devices from the plurality of additional devices to different resource state interference circuits from the plurality of resource state interference circuits.
9 . The system of claim 1 , wherein the cryogenic structure comprises a cryogenic chamber under vacuum.
10 . The system of claim 9 , wherein the cryogenic chamber comprises a plurality of cryogenic chamber ports, wherein the first plurality of optical interconnects extends through the plurality of cryogenic chamber ports to couple the plurality of resource state interference circuits in the non-cryogenic structure to the plurality of detectors in the cryogenic chamber.
11 . The system of claim 1 , wherein interfering the qubits on the plurality of resource state interference circuits comprises performing a joint measurement on multiple qubits from different seed entangled states.
12 . The system of claim 1 , wherein the one or more external devices comprise further interference circuits to further interfere the other qubits of the plurality of resource entangled states.
13 . A method comprising:
receiving, on a first plurality of optical interconnects, qubits of a plurality of seed entangled states, the plurality of seed entangled states further comprising other qubits on other optical interconnects that are coupled to one or more external devices, the first plurality of optical interconnects being coupled to a plurality of resource state interference circuits in a non-cryogenic structure;
interfering, on the plurality of resource state interference circuits, the qubits of the plurality of seed entangled states;
coupling, on a second plurality of optical interconnects, interfered qubits from the plurality of resource state interference circuits in the non-cryogenic structure to a plurality of detectors in a cryogenic structure;
generating, on the plurality of detectors, resource state readout data from the interfered qubits; and
determining, on control circuitry, that a plurality of resource entangled states comprises the other qubits that are on the other optical interconnects based on the resource state readout data, the plurality of seed entangled states and the plurality of resource entangled states being different types of entangled states.
14 . The method of claim 13 , wherein the plurality of seed entangled states is generated by a plurality of additional devices that output the plurality of seed entangled states to the first plurality of optical interconnects.
15 . The method of claim 14 , wherein the plurality of additional devices comprises photonic devices that output the plurality of seed entangled states as photonic entangled states.
16 . The method of claim 15 , wherein the photonic entangled states comprises one or more of: one or more photonic Bell Pairs, one or more photonic Greenberger-Horne-Zeilinger (GHZ) states.
17 . The method of claim 13 , wherein a seed entangled state comprises a first quantity of entangled qubits and wherein a resource entangled state comprises a second quantity of qubits that is different than the first quantity of qubits.
18 . The method of claim 17 , wherein the second quantity of qubits of the resource entangled state is larger than the first quantity of qubits of the seed entangled state.
19 . The method of claim 13 , further comprising a plurality of optical switches coupled between the plurality of resource state interference circuits and the first plurality of optical interconnects.
20 . The method of claim 19 , wherein a plurality of additional devices generates the plurality of seed entangled states, wherein the plurality of optical switches is configurable to couple different sets of additional devices from the plurality of additional devices to different resource state interference circuits from the plurality of resource state interference circuits.
21 . The method of claim 13 , wherein the cryogenic structure comprises a cryogenic chamber under vacuum.
22 . The method of claim 21 , wherein the cryogenic chamber comprises a plurality of cryogenic chamber ports.
23 . The method of claim 22 , wherein the first plurality of optical interconnects extends through the plurality of cryogenic chamber ports to couple the plurality of resource state interference circuits in the non-cryogenic structure to the plurality of detectors in the cryogenic chamber.
24 . The method of claim 13 , wherein interfering the qubits on the plurality of resource state interference circuits comprises performing a joint measurement on multiple qubits from different seed entangled states.
25 . The method of claim 13 , wherein the cryogenic structure is cooled to a cryogenic temperature by one or more cryogenic coolants, and wherein the non-cryogenic structure is at a non-cryogenic temperature that is warmer than the cryogenic temperature.