6 papers · 1 filter
Scalable Photon-Mediated Two-Qubit Gates with Spectrally Noisy Quantum Emitters
Shreekanth S. Yuvarajan, W. A. Coish, David Hucul +1
When two quantum bits are coupled through a cavity, a two-qubit gate can be realized between them either in the near-resonant regime over a timescale established by the coupling st…
Loss-tolerant parallelized Bell-state generation with a hybrid cat qudit
Z. M. McIntyre, W. A. Coish
Having multiple Bell pairs shared by distant quantum registers provides a key resource for both quantum networks and distributed quantum computing. In this paper, we present a prot…
Protocols for inter-module two-qubit gates mediated by time-bin encoded photons
Z. M. McIntyre, W. A. Coish
As quantum devices scale to larger numbers of qubits, entangling gates between distant stationary qubits will help provide flexible, long-range connectivity in modular architecture…
Neural-Shadow Quantum State Tomography
Victor Wei, W. A. Coish, Pooya Ronagh +1
Quantum state tomography (QST) is the art of reconstructing an unknown quantum state through measurements. It is a key primitive for developing quantum technologies. Neural network…
Flying-cat parity checks for quantum error correction
Z. M. McIntyre, W. A. Coish
Long range, multi-qubit parity checks have applications in both quantum error correction and measurement-based entanglement generation. Such parity checks could be performed using…
Homodyne detection is optimal for quantum interferometry with path-entangled coherent states
Z. M. McIntyre, W. A. Coish
We present measurement schemes that do not rely on photon-number resolving detectors, but that are nevertheless optimal for estimating a differential phase shift in interferometry…