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quant-ph2025
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…
quant-ph2021★ 2 cited
Universality of swap for qudits: a representation theory approach
James R. van Meter
An open problem of quantum information theory has been to determine under what conditions universal exchange-only computation is possible for qudits encoded on -state systems fo…
quant-ph2016★ 12 cited
Quantum Estimation of Parameters of Classical Spacetimes
T. G. Downes, J. R. van Meter, E. Knill +2
We describe a quantum limit to measurement of classical spacetimes. Specifically, we formulate a quantum Cramer-Rao lower bound for estimating the single parameter in any one-param…