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Professor JUAN GARRAHAN's Outputs (78)

Coherence, entanglement, and quantumness in closed and open systems with conserved charge, with an application to many-body localization (2019)
Journal Article
Macieszczak, K., Levi, E., Macrì, T., Lesanovsky, I., & Garrahan, J. P. (2019). Coherence, entanglement, and quantumness in closed and open systems with conserved charge, with an application to many-body localization. Physical Review A, 99(5), Article 052354. https://doi.org/10.1103/physreva.99.052354

While the scaling of entanglement in a quantum system can be used to distinguish many-body quantum phases, it is usually hard to quantify the amount of entanglement in mixed states of open quantum systems, while measuring entanglement experimentally,... Read More about Coherence, entanglement, and quantumness in closed and open systems with conserved charge, with an application to many-body localization.

Singularities in large deviations of work in quantum quenches (2018)
Journal Article
Rotondo, P., Minář, J., Garrahan, J. P., Lesanovsky, I., & Marcuzzi, M. (2018). Singularities in large deviations of work in quantum quenches. Physical Review B, 98(18), Article 184303. https://doi.org/10.1103/physrevb.98.184303

We investigate large deviations of the work performed in a quantum quench across two different phases separated by a quantum critical point, using as an example the Dicke model quenched from its superradiant to its normal phase. We extract the distri... Read More about Singularities in large deviations of work in quantum quenches.

Unified Thermodynamic Uncertainty Relations in Linear Response (2018)
Journal Article
Macieszczak, K., Brandner, K., & Garrahan, J. P. (2018). Unified Thermodynamic Uncertainty Relations in Linear Response. Physical Review Letters, 121(13), Article 130601. https://doi.org/10.1103/physrevlett.121.130601

Thermodynamic uncertainty relations (TURs) are recently established relations between the relative uncertainty of time-integrated currents and entropy production in non-equilibrium systems. For small perturbations away from equilibrium, linear respon... Read More about Unified Thermodynamic Uncertainty Relations in Linear Response.

Glassy dynamics due to a trajectory phase transition in dissipative Rydberg gases (2018)
Journal Article
Pérez-Espigares, C., Lesanovsky, I., Garrahan, J. P., & Gutiérrez, R. (2018). Glassy dynamics due to a trajectory phase transition in dissipative Rydberg gases. Physical Review A, 98(2), https://doi.org/10.1103/physreva.98.021804

The physics of highly excited Rydberg atoms is governed by blockade or exclusion interactions that hinder the excitation of atoms in the proximity of a previously excited one. This leads to cooperative effects and a relaxation dynamics displaying spa... Read More about Glassy dynamics due to a trajectory phase transition in dissipative Rydberg gases.

Phases of quantum dimers from ensembles of classical stochastic trajectories (2018)
Journal Article
Oakes, T., Powell, S., Castelnovo, C., Lamacraft, A., & Garrahan, J. P. (2018). Phases of quantum dimers from ensembles of classical stochastic trajectories. Physical Review B, 98(6), Article 064302. https://doi.org/10.1103/PhysRevB.98.064302

We study the connection between the phase behaviour of quantum dimers and the dynamics of classical stochastic dimers. At the so-called Rokhsar–Kivelson (RK) point a quantum dimer Hamiltonian is equivalent to the Markov generator of the dynamics of c... Read More about Phases of quantum dimers from ensembles of classical stochastic trajectories.

Quantum slow relaxation and metastability due to dynamical constraints (2018)
Journal Article
Lan, Z., van Horssen, M., Powell, S., & Garrahan, J. P. (2018). Quantum slow relaxation and metastability due to dynamical constraints. Physical Review Letters, 121(4), 1-6. https://doi.org/10.1103/PhysRevLett.121.040603

One of the general mechanisms that give rise to the slow cooperative relaxation characteristic of classical glasses is the presence of kinetic constraints in the dynamics. Here we show that dynamical constraints can similarly lead to slow thermalisat... Read More about Quantum slow relaxation and metastability due to dynamical constraints.

Solvation in space-time: pre-transition effects in trajectory space (2018)
Journal Article
Katira, S., Garrahan, J. P., & Mandadapu, K. K. (2018). Solvation in space-time: pre-transition effects in trajectory space. Physical Review Letters, 120(26), https://doi.org/10.1103/PhysRevLett.120.260602

We demonstrate pre-transition effects in space--time in trajectories of systems in which the dynamics displays a first-order phase transition between distinct dynamical phases. These effects are analogous to those observed for thermodynamic first-ord... Read More about Solvation in space-time: pre-transition effects in trajectory space.

Rare behavior of growth processes via umbrella sampling of trajectories (2018)
Journal Article
Klymko, K., Geissler, P. L., Garrahan, J. P., & Whitelam, S. (2018). Rare behavior of growth processes via umbrella sampling of trajectories. Physical Review E, 97(3), https://doi.org/10.1103/PhysRevE.97.032123

We compute probability distributions of trajectory observables for reversible and irreversible growth processes. These results reveal a correspondence between reversible and irreversible processes, at particular points in parameter space, in terms of... Read More about Rare behavior of growth processes via umbrella sampling of trajectories.

Open quantum generalisation of Hopfield neural networks (2018)
Journal Article
Rotondo, P., Marcuzzi, M., Garrahan, J. P., Lesanovsky, I., & Müller, M. (2018). Open quantum generalisation of Hopfield neural networks. Journal of Physics A: Mathematical and Theoretical, 51(11), Article 115301. https://doi.org/10.1088/1751-8121/aaabcb

We propose a new framework to understand how quantum effects may impact on the dynamics of neural networks. We implement the dynamics of neural networks in terms of Markovian open quantum systems, which allows us to treat thermal and quantum coherent... Read More about Open quantum generalisation of Hopfield neural networks.

Fluctuating hydrodynamics, current fluctuations and hyperuniformity in boundary-driven open quantum chains (2017)
Journal Article
Carollo, F., Garrahan, J. P., Lesanovsky, I., & Pérez-Espigares, C. (2017). Fluctuating hydrodynamics, current fluctuations and hyperuniformity in boundary-driven open quantum chains. Physical Review E, 96(5), Article 052118. https://doi.org/10.1103/PhysRevE.96.052118

We consider a class of either fermionic or bosonic non-interacting open quantum chains driven by dissipative interactions at the boundaries and study the interplay of coherent transport and dissipative processes, such as bulk dephasing and diffusion.... Read More about Fluctuating hydrodynamics, current fluctuations and hyperuniformity in boundary-driven open quantum chains.

Metastable decoherence-free subspaces and electromagnetically induced transparency in interacting many-body systems (2017)
Journal Article
Macieszczak, K., Zhou, Y., Hofferberth, S., Garrahan, J. P., Li, W., & Lesanovsky, I. (2017). Metastable decoherence-free subspaces and electromagnetically induced transparency in interacting many-body systems. Physical Review A, 96(4), Article 043860. https://doi.org/10.1103/PhysRevA.96.043860

We investigate the dynamics of a generic interacting many-body system under conditions of electromagnetically induced transparency (EIT). This problem is of current relevance due to its connection to non-linear optical media realized by Rydberg atoms... Read More about Metastable decoherence-free subspaces and electromagnetically induced transparency in interacting many-body systems.

Similarity of ensembles of trajectories of reversible and irreversible growth processes (2017)
Journal Article
Klymko, K., Garrahan, J. P., & Whitelam, S. (2017). Similarity of ensembles of trajectories of reversible and irreversible growth processes. Physical Review E, 96(4), Article 042126. https://doi.org/10.1103/PhysRevE.96.042126

Models of bacterial growth tend to be “irreversible,” allowing for the number of bacteria in a colony to increase but not to decrease. By contrast, models of molecular self- assembly are usually “reversible,” allowing for the addition and removal of... Read More about Similarity of ensembles of trajectories of reversible and irreversible growth processes.

Phase transitions in electron spin resonance under continuous microwave driving (2017)
Journal Article
Karabanov, A., Rose, D. C., Köckenberger, W., Garrahan, J. P., & Lesanovsky, I. (in press). Phase transitions in electron spin resonance under continuous microwave driving. Physical Review Letters, 119, https://doi.org/10.1103/PhysRevLett.119.150402

We study an ensemble of strongly coupled electrons under continuous microwave irradiation interacting with a dissipative environment, a problem of relevance to the creation of highly polarized non-equilibrium states
in nuclear magnetic resonance. We... Read More about Phase transitions in electron spin resonance under continuous microwave driving.

Study of the upper-critical dimension of the East model through the breakdown of the Stokes-Einstein relation (2017)
Journal Article
Jung, Y., Kim, S., Thorpe, D. G., Noh, C., Garrahan, J. P., & Chandler, D. (2017). Study of the upper-critical dimension of the East model through the breakdown of the Stokes-Einstein relation. Journal of Chemical Physics, 147(8), https://doi.org/10.1063/1.4999791

© 2017 Author(s). We investigate the dimensional dependence of dynamical fluctuations related to dynamic heterogeneity in supercooled liquid systems using kinetically constrained models. The d-dimensional spin-facilitated East model with embedded pro... Read More about Study of the upper-critical dimension of the East model through the breakdown of the Stokes-Einstein relation.

Experimental Determination of Dynamical Lee-Yang Zeros (2017)
Journal Article
Brandner, K., Maisi, V. F., Pekola, J. P., Garrahan, J. P., & Flindt, C. (2017). Experimental Determination of Dynamical Lee-Yang Zeros. Physical Review Letters, 118(18), Article 180601. https://doi.org/10.1103/physrevlett.118.180601

Statistical physics provides the concepts and methods to explain the phase behavior of interacting many-body systems. Investigations of Lee-Yang zeros - complex singularities of the free energy in systems of finite size - have led to a unified unders... Read More about Experimental Determination of Dynamical Lee-Yang Zeros.

Simple bounds on fluctuations and uncertainty relations for first-passage times of counting observables (2017)
Journal Article
Garrahan, J. P. (2017). Simple bounds on fluctuations and uncertainty relations for first-passage times of counting observables. Physical Review E, 95(3), Article 032134. https://doi.org/10.1103/physreve.95.032134

Recent large deviation results have provided general lower bounds for the fluctuations of time-integrated currents in the steady state of stochastic systems. A corollary are so-called thermodynamic uncertainty relations connecting precision of estima... Read More about Simple bounds on fluctuations and uncertainty relations for first-passage times of counting observables.

Role of interactions in a dissipative many-body localized system (2017)
Journal Article
Everest, B., Lesanovsky, I., Garrahan, J. P., & Levi, E. (2017). Role of interactions in a dissipative many-body localized system. Physical Review B, 95(2), https://doi.org/10.1103/PhysRevB.95.024310

Recent experimental and theoretical efforts have focused on the effect of dissipation on quantum many-body systems in their many-body localized (MBL) phase. While in the presence of dephasing noise such systems reach a unique ergodic state, their dyn... Read More about Role of interactions in a dissipative many-body localized system.

Metastability in an open quantum Ising model (2016)
Journal Article
Rose, D. C., Macieszczak, K., Lesanovsky, I., & Garrahan, J. P. (2016). Metastability in an open quantum Ising model. Physical Review E, 94(5), Article 052132. https://doi.org/10.1103/PhysRevE.94.052132

We apply a recently developed theory for metastability in open quantum systems to a one-dimensional dissipative quantum Ising model. Earlier results suggest this model features either a nonequilibrium phase transition or a smooth but sharp crossover,... Read More about Metastability in an open quantum Ising model.

Emergent kinetic constraints, ergodicity breaking, and cooperative dynamics in noisy quantum systems (2016)
Journal Article
Everest, B., Marcuzzi, M., Garrahan, J. P., & Lesanovsky, I. (2016). Emergent kinetic constraints, ergodicity breaking, and cooperative dynamics in noisy quantum systems. Physical Review E, 94(5), Article 052108. https://doi.org/10.1103/physreve.94.052108

Kinetically constrained spin systems play an important role in understanding key properties of the dynamics of slowly relaxing materials, such as glasses. Recent experimental studies have revealed that manifest kinetic constraints govern the evolutio... Read More about Emergent kinetic constraints, ergodicity breaking, and cooperative dynamics in noisy quantum systems.