295 citations · 988 across the 25 of their papers we have counts for
5 papers · 1 filter
Error-Corrected QRAM Queries with One-Fault-Tolerant \texttt{CSWAP} Gates
Shifan Xu, Connor T. Hann, Nathan Wiebe +2
Quantum random-access memory (QRAM) enables coherent queries to classical data. However, the \(O(N)\) qubits required for a memory with \(N=2^n\) addresses make QRAM appear vulnera…
Scalable Passive QRAM
Siddhartha Jain, Alexander M. Dalzell, Connor T. Hann
We present a blueprint for implementing the physical QRAM operation in a scalable, passive manner, proving its feasibility in principle. Our construction is passive because for an…
Dissipatively Stabilized 0-n Fock Qubits for Noise-Biased Quantum Computing
Su Direkci, Simon Lieu, Kyungjoo Noh +1
Noise-biased qubits have bit-flip errors that are exponentially suppressed relative to phase-flip errors, and offer a promising route toward fault-tolerant quantum computing. Howev…
Bias-preserving cat-cat CNOT gate via vacuum-conditional beam-splitter
Yufeng Ye, Connor T. Hann, Kyungjoo Noh +4
Cat qubits can exhibit strong noise bias due to their exponentially enhanced bit-flip times and only polynomially reduced phase-flip times with increasing photon number, which make…
Readout-induced degradation of transmon lifetimes: interplay of TLSs and qubit spectral reshaping
Ziwen Huang, Jimmy Shih-Chun Hung, Mouktik Raha +9
Measurement backaction degrades dispersive readout of superconducting qubits even at modest drive strengths, often via the reduction of qubit lifetimes during readout. In this work…