Parametric amplifier having a quantum capacitance device
AssigneeMicrosoft Technology Licensing, LLC
InventorDavid J. Reilly
Life of this patent
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Abstract
Systems and methods related to a parametric amplifier including a quantum capacitor are described. In one example, a parametric amplifier comprising an input terminal for receiving a qubit signal is provided. The parametric amplifier further includes a pump terminal for receiving a pump signal. The parametric amplifier further comprises an amplifier, including a plurality of quantum capacitance devices configured to operate in a cryogenic environment, configured to amplify the qubit signal by mixing the qubit signal with the pump signal to generate an amplified signal. The parametric amplifier further includes an output terminal for providing the amplified signal.
Claims20
A system comprising:
- a plurality of qubit devices configured to operate in a cryogenic environment, wherein each of the plurality of qubit devices is configured to provide a signal corresponding to at least one qubit;
- and
- a parametric amplifier comprising a quantum capacitor including at least one quantum capacitance device, wherein the at least one quantum capacitance device comprises a voltage-controllable quantum capacitance device, and wherein the parametric amplifier is configured to amplify a signal corresponding to at least one qubit received from at least one of the plurality of qubit devices.
A method comprising:
- receiving a signal corresponding to at least one qubit;
- receiving a pump signal;
- and
- using a parametric amplifier, comprising at least one quantum capacitance device, amplifying the signal corresponding to the at least one qubit by mixing the signal corresponding to the at least one qubit with the pump signal, wherein the at least one quantum capacitance device is a voltage-controllable quantum capacitance device.
A parametric amplifier comprising:
- an input terminal for receiving a qubit signal;
- a pump terminal for receiving a pump signal;
- an amplifier, including a plurality of quantum capacitance devices configured to operate in a cryogenic environment, configured to amplify the qubit signal by mixing the qubit signal with the pump signal to generate an amplified signal, wherein each of the plurality of quantum capacitance devices comprises a voltage-controllable quantum capacitance device;
- and
- an output terminal for providing the amplified signal.
The system of 14, wherein the cryogenic environment corresponds to a temperature below 4.2 Kelvin and a pressure in a range between 10−3 Torr to 10−10 Torr.
Dependencies are inferred from the claim text.