System and method for controlling superconducting quantum circuits using single flux quantum logic circuits

RF McDermott III, MG Vavilov - US Patent 9,425,804, 2016 - Google Patents
(57) ABSTRACT A system and methods for controlling Superconducting quantum circuits
are provided. The system includes at least one Superconducting quantum circuit described …

Generalized quantum channels

C Shen, K Noh, VV Albert, S Krastanov… - US Patent …, 2020 - Google Patents
According to some aspects, a quantum information system is provided that includes an
ancilla qubit; a qudit coupled to the ancilla qubit, a detector configured to generate a …

System and method for qubit readout

O Naaman - US Patent 9,438,246, 2016 - Google Patents
BACKGROUND In quantum computer architectures based on circuit quan tum
electrodynamics (cCRED), it is a common practice to multiplex a plurality of qubit readout …

Tunable bus-mediated coupling between remote qubits

O Naaman, ZK Keane, M Stoutimore… - US Patent …, 2018 - Google Patents
A tunable bus-mediated coupling system is provided that includes a first input port coupled
to a first end of a variable inductance coupling element through a first resonator and a …

Techniques of oscillator state manipulation for quantum information processing and related systems and methods

R Heeres, P Reinhold, VV Albert, L Jiang… - US Patent …, 2022 - Google Patents
Techniques are described in which a qubit is far off-reso nantly, or dispersively, coupled to a
quantum mechanical oscillator. In particular, a dispersive coupling between a physical qubit …

Reciprocal quantum logic comparator for qubit readout

DL Miller, O Naaman - US Patent 9,595,969, 2017 - Google Patents
One aspect of the present invention includes a reciprocal quantum logic (RQL) readout
system. The system includes an input stage on which a read pulse is provided and an output …

Josephson junctions for improved qubits

DW Abraham, JB Chang, JM Gambetta - US Patent 10,268,968, 2019 - Google Patents
US10268968B2 - Josephson junctions for improved qubits - Google Patents US10268968B2 -
Josephson junctions for improved qubits - Google Patents Josephson junctions for improved …

System and method for controlling superconducting qubits using single flux quantum logic

K Li, RF McDermott III, MG Vavilov - US Patent 10,726,351, 2020 - Google Patents
A system and method for controlling superconducting qubits is provided. In some aspects
the method includes assembling, using a controller of a quantum computing system, a pulse …

Superconductor circuits with active termination

QP Herr, AA Pesetski, P Borodulin - US Patent 9,905,900, 2018 - Google Patents
A microwave circuit is provided that comprises a plurality of transmission lines each
configured to receive and propagate a respective waveform signal of a plurality of waveform …

Tunable bus-mediated coupling between remote qubits

O Naaman, ZK Keane, MJA Stoutimore… - US Patent …, 2019 - Google Patents
A tunable bus-mediated coupling system is provided that includes a first input port coupled
to a first end of a variable inductance coupling element through a first resonator and a …