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Quantum circuit generation

A quantum circuit, quantum technology, applied in the field of quantum computing, can solve the problem of inoperability of quantum computing

Pending Publication Date: 2021-12-10
IBM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if, on the other hand, a quantum circuit (quantum program) requires communication between different analog conversion units (ACUs), this delay can be as high as about 500 nanoseconds or even about 1 microsecond
This time frame is outside of any of today's qubit coherence times, which would make quantum computing inoperable

Method used

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  • Quantum circuit generation
  • Quantum circuit generation
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Embodiment Construction

[0017] figure 1 is a schematic diagram of a quantum circuit generator 100 for a quantum computer according to an embodiment of the present invention. like figure 1 As shown, a quantum circuit generator 100 for a quantum computer includes a controller 102 and a plurality of analog conversion units (ACU) 110, which may include one or more digital-to-analog converters (DAC) 104 and analog-to-digital Converter (ADC) 108 . The general inventive concept is not limited to any particular number of DACs 104 or ADCs 108 or the total number of ACUs 110 . A plurality of ACUs 110 are operatively connected to controller 102 . In one embodiment, multiple ACUs 110 are physically connected to controller 102 using wires or cables. In another embodiment, multiple ACUs 110 are wirelessly connected to controller 102 . Controller 102 may be, for example, a classical computer. The term "classical computer" should be interpreted broadly to include any computer based on bits, including but not l...

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Abstract

A quantum circuit generator for a quantum computer includes a controller; and a plurality of analog conversion units (ACUs) operatively connected to the controller, each ACU being operatively connected to a corresponding qubit of a plurality of qubits, wherein each ACU is configured to convert a digital input from the controller into an analog input at a microwave frequency to control a quantum state of the corresponding qubit. The controller is configured to generate a quantum circuit using at least two qubits of the plurality of qubits, the at least two qubits being selected by the controller based on corresponding classical bits being mapped by the controller and based on latency of the generated quantum circuit so that the generated quantum circuit has a latency less than a threshold latency.

Description

technical field [0001] The present invention relates generally to quantum computing, and more particularly to methods and apparatus for producing quantum circuits. Background technique [0002] Quantum programming is the process of assembling sequences of instructions, or quantum programs, that can be run on a quantum computer in the form of one or more quantum circuits. When a conventional quantum program is executed, the result is produced by the quantum computer. Quantum programs can be relatively large and have many quantum circuits working independently. As a result, the time it takes to execute or run a conventional quantum program in the quantum computer and generate or obtain a result from the computer can be relatively high. [0003] The information stored in a qubit remains coherent for a very small window of time, which is the time when quantum computations can be performed. The main latency bottleneck in many quantum circuits (quantum programs) depends on comm...

Claims

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Application Information

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IPC IPC(8): G06N10/00
CPCG06N10/00B82Y10/00H03M1/662
Inventor A.贾瓦迪亚巴里S.D.莱库奇K.伊诺乌埃
Owner IBM CORP
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