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Entanglement in Many-Body Systems
The recent interest in aspects common to quantum information and condensed matter has prompted a flory of activity at the border of these disciplines that were far distant untill few years ago.…
Entanglement in many-body systems
Recent interest in aspects common to quantum information and condensed matter has prompted a flurry of activity at the border of these disciplines that were far distant until a few years ago.…
Quantum phase transitions and vortex dynamics in superconducting networks
Abstract Josephson-junction arrays are ideal model systems to study a variety of phenomena such as phase transitions, frustration effects, vortex dynamics and chaos. In this review, we focus on the…
Boundary Time Crystals.
- F. Iemini, A. Russomanno, Jonathan Keeling, M. Schirò, M. Dalmonte, R. Fazio
- Medicine, PhysicsPhysical review letters
- 16 August 2017
This work introduces boundary time crystals and analyzes in detail a solvable model where an accurate scaling analysis can be performed.
Scaling of entanglement close to a quantum phase transition
It is demonstrated, for a class of one-dimensional magnetic systems, that entanglement shows scaling behaviour in the vicinity of the transition point, which connects the theory of critical phenomena with quantum information by exploring the entangling resources of a system close to its quantum critical point.
Photon solid phases in driven arrays of nonlinearly coupled cavities.
- Jia-sen Jin, D. Rossini, R. Fazio, M. Leib, M. Hartmann
- Physics, MedicinePhysical review letters
- 9 February 2013
The properties of an array of QED cavities coupled by nonlinear elements, in the presence of photon leakage and driven by a coherent source, are introduced and the crystalline ordering may coexist with phase synchronization.
Cluster mean-field approach to the steady-state phase diagram of dissipative spin systems
We show that short-range correlations have a dramatic impact on the steady-state phase diagram of quantum driven-dissipative systems. This effect, never observed in equilibrium, follows from the fact…
Information-capacity description of spin-chain correlations
Information capacities achievable in the multi-parallel-use scenarios are employed to characterize the quantum correlations in unmodulated spin chains. By studying the qubit amplitude damping…
Measures of quantum synchronization in continuous variable systems.
- A. Mari, A. Farace, N. Didier, V. Giovannetti, R. Fazio
- Computer Science, PhysicsPhysical review letters
- 22 April 2013
Two different measures which quantify the level of synchronization of coupled continuous variable quantum systems are introduced and they allow us to extend to the quantum domain the notions of complete and phase synchronization.
Mott-insulating and glassy phases of polaritons in 1D arrays of coupled cavities.
The phase boundary is located, the behavior of the polariton compressibility and visibility fringes across the critical point is discussed, and a nontrivial scaling of the phase boundary as a function of the number of atoms inside each cavity is found.