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Quantum information processing with an asymmetric error channel

一种非对称、量子的技术，应用在量子信息系统领域，能够解决不能创建多量子比特门等问题

Pending Publication Date: 2021-04-13
YALE UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, while photon polarization benefits from long coherence times and simple single-qubit manipulation, it suffers from the inability to create simple multi-qubit gates

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  • Quantum information processing with an asymmetric error channel
  • Quantum information processing with an asymmetric error channel
  • Quantum information processing with an asymmetric error channel

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Embodiment Construction

[0036] Conventional QIP schemes encode information in one or more two-level quantum systems, or "qubits." The state of a single qubit can be represented by the quantum state |ψ>, which can be any arbitrary superposition of two quantum states |0> and |1>, for example, |ψ>=a|0>+b |1>, where a and b are complex numbers representing the probability amplitudes of a logical qubit being in states |0> and |1>, respectively. Here, |0> and |1> are computational bases, which can be physically realized using any physical system with two orthogonal states.

[0037] To perform useful quantum information processing, conventional quantum information systems initialize a set of qubits known as "data qubits" because these qubits are used to encode the information to be processed into a specific quantum state, on the qubits A set of quantum gates is implemented, and the final quantum state of the qubit is measured after the quantum gates are completed. The first type of conventional quantum ga...

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Abstract

Techniques for performing quantum information processing using an asymmetric error channel are provided. According to some aspects, a quantum information processing includes a data qubit and an ancilla qubit, the ancilla qubit having an asymmetric error channel. The data qubit is coupled to the ancilla qubit. The ancilla qubit may be driven with a stabilizing microwave field to create the asymmetric error channel.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit under 35 U.S.C. §119(e) of U.S. Provisional Patent Application No. 62 / 692,243, filed June 29, 2018, entitled "FAULTTOLERANT MEASUREMENTS AND GATES FOR QUANTUM INFORMATION PROCESSING," which It is hereby incorporated by reference in its entirety. [0003] Statement Regarding Federally Funded Research and Development [0004] This invention was made with the following government support: 1609326 awarded by the National Science Foundation, FA9550-15-0029 awarded by the Air Force Institute of Science, N00014-16- 2270 and with the support of W911NF-14-1-0011 and W911NF-16-1-0349 awarded by the U.S. Army Research Institute. The government has certain rights in this invention. technical field [0005] The techniques described herein relate generally to quantum information systems. In particular, the present application is directed to systems and methods for performing quantum information ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/10H03M13/00
CPCG06N10/70G06N10/40B82Y10/00H04L1/04
Inventor 施卢蒂·普里亚历山大·格里姆菲利普·康帕涅-伊巴尔克史蒂文·M·格文米歇尔·德沃雷特
Owner YALE UNIV
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