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Understanding the mechanisms responsible for the equilibration of isolated quantum many-body systems is a long-standing open problem. In this work we obtain a statistical relationship between the… (More)

- Juan Pablo Paz, Augusto J. Roncaglia
- Physical review letters
- 2008

We provide a complete characterization of the evolution of entanglement between two resonant oscillators coupled to a common environment. We identify three phases with different qualitative long time… (More)

We study the dynamics of the entanglement between two oscillators that are initially prepared in a general two-mode Gaussian state and evolve while coupled to the same environment. In a previous… (More)

We analyze the time dependence of entanglement and total correlations between a system and fractions of its environment in the course of decoherence. For the quantum Brownian motion model, we show… (More)

- Augusto J. Roncaglia, Federico Cerisola, Juan Pablo Paz
- Physical review letters
- 2014

We present a new method to measure the work w performed on a driven quantum system and to sample its probability distribution P(w). The method is based on a simple fact that remained unnoticed until… (More)

- Ignacio García-Mata, Marcos Saraceno, Rodolfo Jalabert, Augusto J. Roncaglia, Diego Wisniacki
- Physical review letters
- 2018

Two properties are needed for a classical system to be chaotic: exponential stretching and mixing. Recently, out-of-time order correlators were proposed as a measure of chaos in a wide range of… (More)

We review the use of an external auxiliary detector for measuring the full distribution of the work performed on or extracted from a quantum system during a unitary thermodynamic process. We first… (More)

A programmable gate array is a circuit whose action is controlled by input data. In this paper we describe a special-purpose quantum circuit that can be programmed to evaluate the expectation value… (More)

- Ignacio García-Mata, Augusto J. Roncaglia, Diego Wisniacki
- Physical review. E
- 2017

The work distribution is a fundamental quantity in nonequilibrium thermodynamics mainly due to its connection with fluctuation theorems. Here, we develop a semiclassical approximation to the work… (More)

- Leandro Aolita, Augusto J. Roncaglia, Alessandro Ferraro, Antonio Acín
- Physical review letters
- 2011

We introduce a family of Hamiltonian systems for measurement-based quantum computation with continuous variables. The Hamiltonians (i) are quadratic, and therefore two body, (ii) are of short range,… (More)