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13 papers · 2 filters
Choice of measurement as signal
A. Kalev, A. Mann, M. Revzen
In classical mechanics, performing a measurement without reading the measurement outcome is equivalent to not exploiting the measurement at all. A non-selective measurement in the…
Breakdown of the cross-Kerr scheme for Photon Counting
Bixuan Fan, Anton F. Kockum, Joshua Combes +6
We show, in the context of single photon detection, that an atomic three-level model for a transmon in a transmission line does not support the predictions of the nonlinear polaris…
Adiabatic quantum computation with Rydberg-dressed atoms
Tyler Keating, Krittika Goyal, Yuan-Yu Jau +3
We study an architecture for implementing adiabatic quantum computation with trapped neutral atoms. Ground state atoms are dressed by laser fields in a manner conditional on the Ry…
Verification of quantum discord
Saleh Rahimi-Keshari, Carlton M. Caves, Timothy C. Ralph
We introduce a measurement-based method for verifying quantum discord of any bipartite quantum system. We show that by performing an informationally complete POVM (IC-POVM) on one…
Quantum limits on phase-preserving linear amplifiers
Carlton M. Caves, Joshua Combes, Zhang Jiang +1
The purpose of a phase-preserving linear amplifier is to make a small signal larger, regardless of its phase, so that it can be perceived by instruments incapable of resolving the…
Quantum state tomography by continuous measurement and compressed sensing
A. Smith, C. A. Riofrío, B. E. Anderson +3
The need to perform quantum state tomography on ever larger systems has spurred a search for methods that yield good estimates from incomplete data. We study the performance of com…