82 citations · 285 across the 8 of their papers we have counts for
8 papers
Probabilistic metrology defeats ultimate deterministic bound
J. Calsamiglia, B. Gendra, R. Munoz-Tapia +1
Quantum-enhanced measurements exploit quantum mechanical effects to provide ultra-precise estimates of physical variables for use in advanced technologies, such as frequency calibr…
Optimal discrimination of quantum states with a fixed rate of inconclusive outcomes
E. Bagan, R. Munoz-Tapia, G. A. Olivares-Renteria +1
In this paper we present the solution to the problem of optimally discriminating among quantum states, i.e., identifying the states with maximum probability of success when a certa…
Quantum learning without quantum memory
G. Sentís, J. Calsamiglia, R. Munoz-Tapia +1
A quantum learning machine for binary classification of qubit states that does not require quantum memory is introduced and shown to perform with the very same error rate as the op…
Optimal scheme for estimating a pure qubit state via local measurements
E. Bagan, M. Baig, R. Munoz-Tapia
We present the optimal scheme for estimating a pure qubit state by means of local measurements on N identical copies. We give explicit examples for low N. For large N, we show that…
Optimal encoding and decoding of a spin direction
E. Bagan, M. Baig, A. Brey +2
For a system of N spins 1/2 there are quantum states that can encode a direction in an intrinsic way. Information on this direction can later be decoded by means of a quantum measu…
Communication of Spin Directions with Product States and Finite Measurements
E. Bagan, M. Baig, R. Munoz-Tapia
Total spin eigenstates can be used to intrinsically encode a direction, which can later be decoded by means of a quantum measurement. We study the optimal strategy that can be adop…