57 citations · 135 across the 7 of their papers we have counts for
7 papers
Indefinite causal order for quantum phase estimation with Pauli noise
Francois Chapeau-Blondeau
This letter further explores the recent scheme of switched quantum channels with indefinite causal order applied to the reference metrological task of quantum phase estimation in t…
Modeling and simulation of a quantum thermal noise on the qubit
Francois Chapeau-Blondeau
Quantum noise or decoherence is a major factor impacting the performance of quantum technologies. On the qubit, an important quantum noise, often relevant in practice, is the therm…
Indefinite causal order for quantum metrology with quantum thermal noise
Francois Chapeau-Blondeau
A switched quantum channel with indefinite causal order is studied for the fundamental metrological task of phase estimation on a qubit unitary operator affected by quantum thermal…
Quantum parameter estimation on coherently superposed noisy channels
Francois Chapeau-Blondeau
A generic qubit unitary operator affected by quantum noise is duplicated and inserted in a coherently superposed channel, superposing two paths offered to a probe qubit across the…
Noisy quantum metrology with the assistance of indefinite causal order
Francois Chapeau-Blondeau
A generic qubit unitary operator affected by depolarizing noise is duplicated and inserted in a quantum switch process realizing a superposition of causal orders. The characterizat…
Optimized entanglement for quantum parameter estimation from noisy qubits
Francois Chapeau-Blondeau
For parameter estimation from an -component composite quantum system, it is known that a separable preparation leads to a mean-squared estimation error scaling as while an…