公开(公告)号：US20200242502A1

公开(公告)日：2020-07-30

申请号：US16708207

申请日：2019-12-09

Applicant: IonQ, Inc.

Inventor： Jwo-Sy Chen ,  Neal Pisenti ,  Yunseong Nam

IPC: G06N10/00 ,  G06F11/10 ,  G06F30/20

Abstract: The disclosure describes various techniques to control of small angle Mølmer-Sorensen (MS) gates and to handle asymmetric errors. A technique is described that implements a two-qubit calibration circuit with two MS gates, where a parameter θ represents an amount of entanglement of the MS gate. The calibration circuit is run for several values of θ to measure observed parity signals that are direct measurements of the values of θ. Calibration information is generated that describes the relationship between θ and the parity signals, and such calibration information is then provided to arbitrarily calibrate one or more MS gates in a quantum simulation. Another technique is described for using the calibration information in quantum simulations, including for quantum chemistry simulations. Yet another technique is described for handling system-based asymmetric errors in the measurements of different qubit states in different types of quantum circuits, including, for example, the calibration circuit mentioned above.