Microwave-free control of a superconductor-based quantum computer
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United States of America Patent
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Jun 12, 2018
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Apr 27, 2017
app pub date -
Jul 20, 2016
filing date -
Jul 20, 2015
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Abstract
Physical superconducting qubits are controlled according to an “encoded” qubit scheme, where a pair of physical superconducting qubits constitute an encoded qubit that can be controlled without the use of a microwave signal. For example, a quantum computing system has at least one encoded qubit and a controller. Each encoded qubit has a pair of physical superconducting qubits capable of being selectively coupled together. Each physical qubit has a respective tunable frequency. The controller controls a state of each of the pair of physical qubits to perform a quantum computation without using microwave control signals. Rather, the controller uses DC-based voltage or flux pulses.
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