Superconducting Qubits: Current State of Play
نویسندگان
چکیده
منابع مشابه
Fast accurate state measurement with superconducting qubits.
Faster and more accurate state measurement is required for progress in superconducting qubit experiments with greater numbers of qubits and advanced techniques such as feedback. We have designed a multiplexed measurement system with a bandpass filter that allows fast measurement without increasing environmental damping of the qubits. We use this to demonstrate simultaneous measurement of four q...
متن کاملSuperconducting phase qubits
Experimental progress is reviewed for superconducting phase qubit research at the University of California, Santa Barbara. The phase qubit has a potential advantage of scalability, based on the low impedance of the device and the ability to microfabricate complex “quantum integrated circuits”. Single and coupled qubit experiments, including qubits coupled to resonators, are reviewed along with ...
متن کاملSolid-state qubits with current-controlled coupling.
The ability to switch the coupling between quantum bits (qubits) on and off is essential for implementing many quantum-computing algorithms. We demonstrated such control with two flux qubits coupled together through their mutual inductances and through the dc superconducting quantum interference device (SQUID) that reads out their magnetic flux states. A bias current applied to the SQUID in the...
متن کاملReversible state transfer between superconducting qubits and atomic ensembles
David Petrosyan, Guy Bensky, Gershon Kurizki, Igor Mazets, Johannes Majer, and Jörg Schmiedmayer Department of Chemical Physics, Weizmann Institute of Science, Rehovot 76100, Israel Institute of Electronic Structure and Laser, FORTH, 71110 Heraklion, Crete, Greece Atominstitut der Österreichischen Universitäten, TU-Wien, A-1020 Vienna, Austria A. F. Ioffe Physico-Technical Institute, 194021 St....
متن کاملSupplementary information for Fast Accurate State Measurement with Superconducting Qubits
where CF and VF are the filter capacitance and voltage amplitude. See Fig. 1(a). To compute the ratio Vq/VF we use voltage division. We make the crucial observation that to calculate the qubit damping we must analyze the circuit impedances at the qubit frequency. Because the qubit is off resonance from the measurement resonator, the measurement resonator’s impedance Zr is lower than the impedan...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Annual Review of Condensed Matter Physics
سال: 2020
ISSN: 1947-5454,1947-5462
DOI: 10.1146/annurev-conmatphys-031119-050605