380 citations · 3.4k across the 72 of their papers we have counts for
72 papers
Nonclassical energy-change distribution as a witness of non-Markovian quantum dynamics
Marco Pezzutto, Anton Corr, Gabriele De Chiara +2
We address the problem of identifying non-Markovian quantum time evolutions of an open quantum system by only performing measurements of the system's energy. We demonstrate that vi…
Bosonic Working Media in a Frustrated Rhombi Chain: Otto and Stirling Cycles from Flat Bands, Caging, and Flux Control
Francisco J. Peña, Rafael García-Zamora, Gabriele De Chiara +5
We demonstrate that flat-band engineering provides a direct route to control and optimize the thermodynamic performance of quantum heat engines. We consider noninteracting bosons o…
Conditioning in Generative Quantum Denoising Diffusion Models
Daniel Quinn, Lorenzo Buffoni, Stefano Gherardini +1
Quantum denoising diffusion models have recently emerged as a powerful framework for generative quantum machine learning. In this work, we extend these models by introducing a cond…
Orthogonalization speed-up from quantum coherence after a sudden quench
Beatrice Donelli, Gabriele De Chiara, Francesco Scazza +1
We introduce a nonequilibrium phenomenon, reminiscent of Anderson's orthogonality catastrophe (OC), that arises in the transient dynamics following an interaction quench between a…
Thermodynamics of coupled time crystals with an application to energy storage
Paulo J. Paulino, Albert Cabot, Gabriele De Chiara +3
Open many-body quantum systems can exhibit intriguing nonequilibrium phases of matter, such as time crystals. In these phases, the state of the system spontaneously breaks the time…
Quasiprobabilities in quantum thermodynamics and many-body systems
Stefano Gherardini, Gabriele De Chiara
In this tutorial, we present the definition, interpretation and properties of some of the main quasiprobabilities that can describe the statistics of measurement outcomes evaluated…
Universally Robust Quantum Control
Pablo M. Poggi, Gabriele De Chiara, Steve Campbell +1
We study the robustness of the evolution of a quantum system against small uncontrolled variations in parameters in the Hamiltonian. We show that the fidelity susceptibility, which…
Quantum coherence enables hybrid multitask and multisource regimes in autonomous thermal machines
Kenza Hammam, Gonzalo Manzano, Gabriele De Chiara
Non-equilibrium effects may have a profound impact on the performance of thermal devices performing thermodynamic tasks such as refrigeration or heat pumping. The possibility of en…
Structured quantum collision models: generating coherence with thermal resources
Stefano Cusumano, Gabriele De Chiara
Quantum collision models normally consist of a system interacting with a set of ancillary units representing the environment. While these ancillary systems are usually assumed to b…
Quantum thermodynamics of boundary time-crystals
Federico Carollo, Igor Lesanovsky, Mauro Antezza +1
Time-translation symmetry breaking is a mechanism for the emergence of non-stationary many-body phases, so-called time-crystals, in Markovian open quantum systems. Dynamical aspect…
A thermodynamic approach to optimization in complex quantum systems
Alberto Imparato, Nicholas Chancellor, Gabriele De Chiara
We consider the problem of finding the energy minimum of a complex quantum Hamiltonian by employing a non-Markovian bath prepared in a low energy state. The energy minimization pro…
Thermodynamics of hybrid quantum rotor devices
Heather Leitch, Kenza Hammam, Gabriele De Chiara
We investigate the thermodynamics of a hybrid quantum device consisting of two qubits collectively interacting with a quantum rotor and coupled dissipatively to two equilibrium res…
Exploiting coherence for quantum thermodynamic advantage
Kenza Hammam, Heather Leitch, Yassine Hassouni +1
The introduction of the quantum analogue of a Carnot engine based on a bath comprising of particles with a small amount of coherence initiated an active line of research on the har…
Optimal Control in Disordered Quantum Systems
Luuk Coopmans, Steve Campbell, Gabriele De Chiara +1
We investigate several control strategies for the transport of an excitation along a spin chain. We demonstrate that fast, high fidelity transport can be achieved using protocols d…
Driven quantum harmonic oscillators: A working medium for thermal machines
Heather Leitch, Nicolò Piccione, Bruno Bellomo +1
The study of quantum thermodynamics is key to the development of quantum thermal machines. In contrast to most of the previous proposals based on discrete strokes, here we consider…
A quantum fluctuation theorem for any Lindblad master equation
Gabriele De Chiara, Alberto Imparato
We present a general quantum fluctuation theorem for the entropy production of an open quantum system coupled to multiple environments, not necessarily at equilibrium. Such a gener…
Harnessing non-adiabatic excitations promoted by a quantum critical point
Obinna Abah, Gabriele De Chiara, Mauro Paternostro +1
Crossing a quantum critical point in finite time challenges the adiabatic condition due to the closing of the energy gap, which ultimately results in the formation of excitations.…
Collision models can efficiently simulate any multipartite Markovian quantum dynamics
Marco Cattaneo, Gabriele De Chiara, Sabrina Maniscalco +2
We introduce the multipartite collision model, defined in terms of elementary interactions between subsystems and ancillae, and show that it can simulate the Markovian dynamics of…
Quantum thermodynamically consistent local master equations
Adam Hewgill, Gabriele De Chiara, Alberto Imparato
Local master equations are a widespread tool to model open quantum systems, especially in the context of many-body systems. These equations, however, are believed to lead to thermo…
Ultrafast critical ground state preparation via bang-bang protocols
Luca Innocenti, Gabriele De Chiara, Mauro Paternostro +1
The fast and faithful preparation of the ground state of quantum systems is a challenging task but crucial for several applications in the realm of quantum-based technologies. Deco…
Thermodynamics of weakly coherent collisional models
Franklin L. S. Rodrigues, Gabriele De Chiara, Mauro Paternostro +1
We introduce the idea of weakly coherent collisional models, where the elements of an environment interacting with a system of interest are prepared in states that are approximatel…
Reconciliation of quantum local master equations with thermodynamics
G. De Chiara, G. Landi, A. Hewgill +4
The study of open quantum systems often relies on approximate master equations derived under the assumptions of weak coupling to the environment. However when the system is made of…
Genuine quantum correlations in quantum many-body systems: a review of recent progress
Gabriele De Chiara, Anna Sanpera
Quantum information theory has considerably helped in the understanding of quantum many-body systems. The role of quantum correlations and in particular, bipartite entanglement, ha…
Entanglement scaling at first order phase transitions
A. Yuste, C. Cartwright, G. De Chiara +1
First order quantum phase transitions (1QPTs) are signaled, in the thermodynamic limit, by discontinuous changes in the ground state properties. These discontinuities affect expect…