# US 12,762,451 B2 · Methods, architectures, apparatuses and systems for enabling joint quantum measurement and memory as a service

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- Number: US 12,762,451 B2
- Document ID: US12762451B2
- Status: Granted
- Kind: B2
- Application number: 18/290,133
- Filed: 2022-05-10
- Published: 2024-11-14
- Granted: 2026-10-13
- Earliest claimed: 2021-05-10
- Assignees: InterDigital Patent Holdings, Inc.
- Applicants: InterDigital Patent Holdings, Inc.
- Inventors: Chonggang Wang; Shamim Rahman
- Web page: https://patentgrep.com/patent/US12762451B2

## CPC

- G06N 10/40: Physical realisations or architectures of quantum processors or components for manipulating qubits, e.g. qubit coupling or qubit control
- G06N 10/20: Models of quantum computing, e.g. quantum circuits or universal quantum computers
- G06N: COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS

## Abstract

Procedures, methods, architectures, apparatuses, systems, devices, and computer program products of quantum measurement implemented by a device, the device configured to communicate with a client and with one or more servers, wherein the one or more servers comprise one or more quantum measurement physical equipment, the method comprising: receiving qubits from the client via a first quantum channel between the device and the client; performing a first qubit operation on the qubits to obtain transformed qubits; sending a first portion of the transformed qubits to the first server via a second quantum channel between the device and the first server; receiving, from the first server, information associated with first quantum measurement results of the first portion of the transformed qubits.

## Claims

### Claim 1

A method of quantum measurement implemented by a device, the device configured to communicate with a client and with one or more servers, wherein the one or more servers comprise one or more quantum measurement physical equipment, the method comprising:
receiving qubits from the client via a first quantum channel between the device and the client;
performing a first qubit operation on the qubits to obtain transformed qubits;
sending, to a first server of the one or more servers, one or more first quantum measurement settings;
sending a first portion of the transformed qubits to the first server via a second quantum channel between the device and the first server;
receiving, from the first server, information indicating one or more first quantum measurement results of the first portion of the transformed qubits, wherein the one or more first quantum measurement results are based on the first quantum measurement settings;
obtaining the one or more first quantum measurement results based on the information received, and performing a second qubit operation on the one or more first quantum measurement results to generate one or more final quantum measurement results of the qubits, wherein the second qubit operation is based on the first qubit operation; and
sending, to the client, information indicating the one or more final quantum measurement results.

### Claim 2 (depends on 1)

The method according to claim 1, comprising:
generating a measurement response comprising or indicating the information indicating the one or more final quantum measurement results, wherein sending, to the client, information indicating the one or more final quantum measurement results comprises sending, to the client, the measurement response comprising or indicating the information indicating the one or more final quantum measurement results.

### Claim 3 (depends on 1)

The method according to claim 1, comprising:
sending, to a second server of the one or more servers, one or more second quantum measurement settings and a second portion of the transformed qubits;
receiving, from the second server, information indicating one or more second quantum measurement results of the second portion of the transformed qubits, wherein the one or more second quantum measurement results are based on the one or more second quantum measurement settings;
obtaining the one or more second quantum measurement results based on the information received and combining one or more of the one or more first quantum measurement results and one or more of the one or more second quantum measurement results; and
performing the second qubit operation on the combined one or more of the one or more first quantum measurement results and one or more of the one or more second quantum measurement results to generate the one or more final quantum measurement results.

### Claim 4 (depends on 3)

The method according to claim 3, comprising receiving information indicating an address of a quantum memory wherein the one or more second quantum measurement results are stored.

### Claim 5 (depends on 1)

The method according to claim 1, wherein receiving, from the second server, the information indicating one or more second quantum measurement results comprises:
receiving, from the second server, a measurement response comprising or indicating the information indicating one or more second quantum measurement results.

### Claim 6 (depends on 1)

The method according to claim 1, comprising:
sending, to the client, information indicating instructions to regulate a transmission rate of qubits to the device; and
receiving, via the first quantum channel, qubits according to the transmission rate of qubits.

### Claim 7 (depends on 1)

The method according to claim 1, comprising:
receiving, from the first server, information indicating instructions to regulate a transmission rate of qubits to the first server; and
sending, via the second quantum channel, the transformed qubits according to the transmission rate of qubits.

### Claim 8 (depends on 1, 2, 3, 4, 5, 6, 7)

The method according to at least one of claims 1 to 7, comprising:
sending, to the first server, a subscription request indicating, or comprising information indicating, one or more parameters; and
receiving, from the first server, a subscription response indicating, or comprising information indicating, one or more of an authentication of and an authorization of the subscription request based on the one or more parameters.

### Claim 9 (depends on 1)

The method according to claim 1, comprising receiving information indicating the one or more final quantum measurement results.

### Claim 10 (depends on 1)

The method according to claim 1, comprising receiving information indicating an address of a quantum memory wherein the one or more first quantum measurement results are stored.

### Claim 11

A device capable of communicating with a client and with one or more servers, wherein the one or more servers comprise one or more quantum measurement physical equipment, the device being configured to:
receive qubits from the client via a first quantum channel between the device and the client;
perform a first qubit operation on the qubits to obtain transformed qubits;
send, to a first server of the one or more servers, one or more first quantum measurement settings;
send a first portion of the transformed qubits to the first server via a second quantum channel between the device and the first server;
receive, from the first server, information indicating one or more first quantum measurement results of the first portion of the transformed qubits, wherein the one or more first quantum measurement results are based on the one or more first quantum measurement settings;
obtain the one or more first quantum measurement results based on the information received, and perform a second qubit operation on the one or more first quantum measurement results to generate one or more final quantum measurement results of the qubits, wherein the second qubit operation is based on the first qubit operation; and
send, to the client, information indicating the one or more final quantum measurement results.

### Claim 12 (depends on 11)

The device according to claim 11, configured to:
generate a measurement response comprising or indicating the information indicating the one or more final quantum measurement results, wherein being configured to send, to the client, information indicating the one or more final quantum measurement results comprises being configured to send, to the client, the measurement response comprising or indicating the information indicating the one or more final quantum measurement results.

### Claim 13 (depends on 11)

The device according to claim 11, configured to:
send, to a second server of the one or more servers, one or more second quantum measurement settings and a second portion of the transformed qubits;
receive, from the second server, information indicating one or more second quantum measurement results of the second portion of the transformed qubits, wherein the one or more second quantum measurement results are based on the one or more second quantum measurement settings;
obtain the one or more second quantum measurement results based on the information received, and combine the one or more first quantum measurement results and the one or more second quantum measurement results; and
perform the second qubit operation on the combined one or more of the one or more first quantum measurement results and one or more of the one or more second quantum measurement results to generate the one or more final quantum measurement results.

### Claim 14 (depends on 13)

The device according to claim 13, configured to receive information indicating an address of a quantum memory wherein the one or more second quantum measurement results are stored.

### Claim 15 (depends on 11)

The device according to claim 11, wherein being configured to receive, from the second server, the information indicating the one or more second quantum measurements results comprises being configured to:
receive, from the second server, a measurement response comprising or indicating the information indicating the one or more second quantum measurement results.

### Claim 16 (depends on 11)

The device according to claim 11, configured to:
send, to the client, information indicating instructions to regulate a transmission rate of qubits to the device; and
receive, via the first quantum channel, qubits according to the transmission rate of qubits.

### Claim 17 (depends on 11)

The device according to claim 11, configured to:
receive, from the first server, information indicating instructions to regulate a transmission rate of qubits to the first server; and
send, via the second quantum channel, the transformed qubits according to the transmission rate of qubits.

### Claim 18 (depends on 11)

The device according to claim 11, configured to:
send, to the first server, a subscription request indicating, or comprising information indicating, one or more parameters; and
receive, from the first server, a subscription response indicating, or comprising information indicating, one or more of an authentication of and an authorization of the subscription request based on the one or more parameters.

### Claim 19 (depends on 11)

The device according to claim 11, configured to receive information indicating the one or more final quantum measurement results.

### Claim 20 (depends on 11)

The device according to claim 11, configured to receive information indicating an address of a quantum memory wherein the one or more first quantum measurement results are stored.
