Yale University

Yiwen Chu

Robert J Schoelkopf, Iii

Luigi Frunzio

Liang Jiang

Michel Devoret

Peter Thomas Rakich

Prashanta Kharel

Steven M Girvin

Connor Hann

William Renninger

Teresa Brecht

Zlatko Kristev Minev

Yaxing Zhang

Kyle Serniak

Ioan Pop

Luke Burkhart

Changling Zou

Robert J Schoelkopf Iii

Robert J Iii Schoelkopf

Zlatko Minev

Techniques for implementing a QRAM by routing quantum information through multiple modes of a bosonic system are described. According to some aspects, a single bosonic system may be configured to maintain quantum information in a large number of independent modes at the same time. Suitable operations upon these modes may allow a quantum address value to be routed to modes associated with respective bits such that the only modes altered by the operations are those associated with the addresses being accessed. These modes may be operated upon based on the stored values then extracted to obtain the desired correlated superposition of the stored bit values in the addresses. The bits stored at the address locations may be classical bits, or may be qubits.

Techniques for quantum memory addressing and related systems and methods

Techniques for operating a mechanical oscillator as a quantum memory are described. According to some aspects, a qubit may be coupled to a piezoelectric material such that the electric field of the qubit causes stress within the piezoelectric material. The piezoelectric material may be in contact with a crystalline substrate forming an acoustic resonator such that the qubit couples to bulk acoustic waves in the crystalline substrate via its interaction with the piezoelectric material. According to some aspects, application of a suitable electromagnetic pulse to the qubit may cause an exchange of energy from the qubit to the acoustic phonon system and thereby transfer quantum information from the qubit to the phonon system.

Techniques for coupling qubits to acoustic resonators and related systems and methods

According to some aspects, a quantum mechanical system is provided, comprising a resonator having a plurality of superconducting surfaces and configured to support at least one electromagnetic oscillation mode within a three-dimensional region, wherein the plurality of superconducting surfaces include a first superconducting surface that defines a first plane, and a physical qubit comprising at least one planar component that is planar within the first plane and borders the three-dimensional region.

Techniques for coupling planar qubits to non-planar resonators and related systems and methods

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New Haven, CT, United States of America

Yiwen Chu