WebSep 22, 2024 · Flux-tunable qubits are a useful resource for superconducting quantum processors. They can be used to perform cphase gates, facilitate fast reset protocols, avoid qubit-frequency collisions in large processors, and enable certain fast readout schemes. WebJan 26, 2007 · Dephasing of a superconducting flux qubit Phys Rev Lett. 2007 Jan 26;98 (4):047004. doi: 10.1103/PhysRevLett.98.047004. Epub 2007 Jan 23. Authors K Kakuyanagi 1 , T Meno , S Saito , H Nakano , K Semba , H Takayanagi , F Deppe , A Shnirman Affiliation 1 NTT Basic Research Laboratories, NTT Corporation, Kanagawa, 243-0198, …
PRX Quantum 2, 040204 (2024) - Superconducting Circuit …
WebMar 5, 2024 · Encoding a qubit in logical quantum states with wave functions characterized by disjoint support and robust energies can offer simultaneous protection against relaxation and pure dephasing. One of the most promising candidates for such a fully protected superconducting qubit is the 0 – π circuit [Brooks et al., Phys. Rev. A 87, 052306 (2013)]. WebJan 12, 2024 · Superconducting quantum circuits are a strong candidate for quantum computing, 1,2,3 and a convenient platform for quantum optics 4,5,6 and quantum simulation. 7,8 Extensive efforts have been made ... chucksmith.org
Decoherence benchmarking of superconducting qubits
WebJan 25, 2011 · In this work we demonstrate how dynamical-decoupling techniques can moderate the dephasing effects of low-frequency noise on a superconducting qubit with energy-relaxation time T1 = 1/Gamma1 = 12 us. Using the CPMG sequence with up to 200 pi-pulses, we demonstrate a 50-fold improvement in the transverse relaxation time T2 … WebJan 18, 2024 · Here we apply weak in-plane magnetic fields to a capacitively-shunted flux qubit (where the Zeeman splitting of surface spins lies below the device temperature) and study the flux-noise-limited qubit dephasing, revealing previously unexplored trends that may shed light on the dynamics behind the emergent noise. WebThe microscopic of 1 / f magnetic flux noise in superconducting circuits has remained an open question for several decades despite extensive experimental and theoretical investigation. Recent progress in superconducting devices for quantum information has highlighted the need to mitigate sources of qubit decoherence, driving a renewed … desmidts golf course crivitz wisconsin