168 citations · 721 across the 15 of their papers we have counts for
15 papers
Coupling a single Nitrogen-Vacancy center to a superconducting flux qubit in the far off resonance regime
Tom Douce, Michael Stern, Nicim Zagury +2
We present a theoretical proposal to couple a single Nitrogen-Vacancy (NV) center to a superconducting flux qubit (FQ) in the regime where both systems are off resonance. The coupl…
Weak-value amplification as an optimal metrological protocol
G. Bié Alves, B. M. Escher, R. L. de Matos Filho +2
The implementation of weak-value amplification requires the pre- and post-selection of states of a quantum system, followed by the observation of the response of the meter, which i…
Quantum Metrological Limits via a Variational Approach
B. M. Escher, L. Davidovich, N. Zagury +1
The minimum achievable statistical uncertainty in the estimation of physical parameters is determined by the quantum Fisher information. Its computation for noisy systems is still…
Unitary expansion of the time evolution operator
N. Zagury, A. Aragao, J. Casanova +1
We propose an expansion of the unitary evolution operator, associated to a given Schrödinger equation, in terms of a finite product of explicit unitary operators. In this manner, t…
Entangled coherent states under dissipation
F. Lastra, G. Romero, C. E. Lopez +2
We study the evolution of entangled coherent states of the two quantized electromagnetic fields under dissipation. Characteristic time scales for the decay of the negativity are fo…
Single observable concurrence measurement without simultaneous copies
A. Salles, F. de Melo, J. C. Retamal +2
We present a protocol that allows us to obtain the concurrence of any two qubit pure state by performing a minimal and optimal tomography of one of the subsystems through measuring…