6 papers · 1 filter
Quantified convergence of general homodyne measurements with applications to continuous variable quantum computing
Emanuel Knill, Ezad Shojaee, James R. van Meter +2
In arXiv:2503.00188 we introduced broadband pulsed (BBP) homodyne measurements as a generalization of standard pulsed homodyne quadrature measurements. BBP can take advantage of de…
Measuring Multiparticle Indistinguishability with the Generalized Bunching Probability
Shawn Geller, Emanuel Knill
The indistinguishability of many bosons undergoing passive linear transformations followed by number basis measurements is fully characterized by the visible state of the bosons. H…
Constructing an approximate logical Markovian model of consecutive QEC cycles of a stabilizer code
Alex Kwiatkowski, Aaron J. Friedman, Shawn Geller +3
As quantum error correction (QEC) experiments continue to make rapid progress, there is increased interest in designing experiments with guarantees of logical performance. At prese…
Broadband pulsed quadrature measurements with calorimeters
Ezad Shojaee, James R. van Meter, Karl Mayer +2
A general one-dimensional quantum optical mode is described by a shape in the time or frequency domain. A fundamental problem is to measure a quadrature operator of such a mode. If…
Coherent coupling and non-destructive measurement of trapped-ion mechanical oscillators
Pan-Yu Hou, Jenny J. Wu, Stephen D. Erickson +10
Precise quantum control and measurement of several harmonic oscillators, such as the modes of the electromagnetic field in a cavity or of mechanical motion, are key for their use a…
Multi-mode Gaussian State Analysis with one Bounded Photon Counter
Arik Avagyan, Emanuel Knill, Scott Glancy
Gaussian states are ubiquitous in quantum optics and information processing, and it is essential to have effective tools for their characterization. One such tool is a photon-numbe…