773 citations · 2.7k across the 56 of their papers we have counts for
6 papers · 1 filter
Dynamical phase transitions as a resource for quantum enhanced metrology
Katarzyna Macieszczak, Madalin Guta, Igor Lesanovsky +1
We consider the general problem of estimating an unknown control parameter of an open quantum system. We establish a direct relation between the evolution of both system and enviro…
Quantum learning of coherent states
Gael Sentís, Madalin Guta, Gerardo Adesso
We develop a quantum learning scheme for binary discrimination of coherent states of light. This is a problem of technological relevance for the reading of information stored in a…
Fisher informations and local asymptotic normality for continuous-time quantum Markov processes
Catalin Catana, Luc Bouten, Madalin Guta
We consider the problem of estimating an arbitrary dynamical parameter of an quantum open system in the input-output formalism. For irreducible Markov processes, we show that in th…
Sanov and Central Limit Theorems for output statistics of quantum Markov chains
Merlijn van Horssen, Madalin Guta
In this paper we consider the statistics of repeated measurements on the output of a quantum Markov chain. We establish a large deviations result analogous to Sanov's theorem for t…
Heisenberg versus standard scaling in quantum metrology with Markov generated states and monitored environment
Catalin Catana, Madalin Guta
Finding optimal and noise robust probe states is a key problem in quantum metrology. In this paper we propose Markov dynamics as a possible mechanism for generating such states, an…
Equivalence classes and local asymptotic normality in system identification for quantum Markov chains
Madalin Guta, Jukka Kiukas
We consider the problems of identifying and estimating dynamical parameters of an ergodic quantum Markov chain, when only the stationary output is accessible for measurements. On t…