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A new chapter in the problem of the reduction of chemistry to physics: The Quantum Theory of Atoms in Molecules
(Springer, 2019-01)
The problem of the reduction of chemistry to physics has been traditionally addressed in terms of classical structural chemistry and standard quantum mechanics. In this work, we will study the problem from the perspective ...
General theory of measurement with two copies of a quantum state
(American Physical Society, 2009-07)
We analyze the results of the most general measurement on two copies of a quantum state. We show that by using two copies of a quantum state it is possible to achieve an exponential improvement with respect to known methods ...
Entropic relations for retrodicted quantum measurements
(American Physical Society, 2018-01)
Given an arbitrary measurement over a system of interest, the outcome of a posterior measurement can be used for improving the statistical estimation of the system state after the former measurement. Here, we realize an ...
A formal framework for the study of the notion of undefined particle number in quantum mechanics
(Springer, 2015-01)
It is usually stated that quantum mechanics presents problems with the identity of particles, the most radical position—supported by E. Schrödinger—asserting that elementary particles are not individuals. But the subject ...
Coherent control of quantum systems as a resource theory
(IOP Publishing, 2016-08)
Control at the interface between the classical and the quantum world is fundamental in quantum physics. In particular, how classical control is enhanced by coherence effects is an important question both from a theoretical ...
The role of symmetry in the interpretation of quantum mechanics
(Institute for Scientific Methodology, 2015-12)
Despite the impressive amount of literature on the foundations of quantum mechanics, the relevance of symmetry in interpretation is not properly acknowledged. In fact, although it is usually said that quantum mechanics is ...
Maximally non-Markovian quantum dynamics without environment-to-system backflow of information
(American Physical Society, 2018-05)
The degree of non-Markovianity allows one to characterize quantum evolutions that depart from a Markovian regime in a similar way as the Schmidt number measures the degree of entanglement of pure states. Maximally non-Markovian ...
Quantum Sensing of Noisy and Complex Systems under Dynamical Control
(Molecular Diversity Preservation International, 2016-12-24)
We review our unified optimized approach to the dynamical control of quantum-probe interactions with noisy and complex systems viewed as thermal baths. We show that this control, in conjunction with tools of quantum ...
The g-theorem and quantum information theory
(Springer, 2016-10)
We study boundary renormalization group flows between boundary conformal field theories in 1 + 1 dimensions using methods of quantum information theory. We define an entropic g-function for theories with impurities in terms ...
Maximizing information on the environment by dynamically controlled qubit probes
(American Physical Society, 2016-01)
We explore the ability of a qubit probe to characterize unknown parameters of its environment. By resorting to the quantum estimation theory, we analytically find the ultimate bound on the precision of estimating key ...