All Outputs (89)

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.

Non-equilibrium fluctuations and metastability arising from non-additive interactions in dissipative multi-component Rydberg gases (2016)
Journal Article
Gutierrez, R., Garrahan, J. P., & Lesanovsky, I. (2016). Non-equilibrium fluctuations and metastability arising from non-additive interactions in dissipative multi-component Rydberg gases. New Journal of Physics, 18, https://doi.org/10.1088/1367-2630/18/9/093054

We study the out-of-equilibrium dynamics of dissipative gases of atoms excited to two or more high-lying Rydberg states. This situation bears interesting similarities to classical binary (in general p-ary) mixtures of particles. The effective forces... Read More about Non-equilibrium fluctuations and metastability arising from non-additive interactions in dissipative multi-component Rydberg gases.

Applicability of dynamic facilitation theory to binary hard disk systems (2016)
Journal Article
Isobe, M., Keys, A. S., Chandler, D., & Garrahan, J. P. (2016). Applicability of dynamic facilitation theory to binary hard disk systems. Physical Review Letters, 117(14), Article 145701. https://doi.org/10.1103/PhysRevLett.117.145701

We numerically investigate the applicability of dynamic facilitation (DF) theory for glass-forming binary hard disk systems where supercompression is controlled by pressure. By using novel efficient algorithms for hard disks, we are able to generate... Read More about Applicability of dynamic facilitation theory to binary hard disk systems.

Classical stochastic dynamics and continuous matrix product states: gauge transformations, conditioned and driven processes, and equivalence of trajectory ensembles (2016)
Journal Article
Garrahan, J. P. (2016). Classical stochastic dynamics and continuous matrix product states: gauge transformations, conditioned and driven processes, and equivalence of trajectory ensembles. Journal of Statistical Mechanics: Theory and Experiment, 2016(7), Article 073208. https://doi.org/10.1088/1742-5468/2016/07/073208

Borrowing ideas from open quantum systems, we describe a formalism to encode ensembles of trajectories of classical stochastic dynamics in terms of continuous matrix product states (cMPSs). We show how to define in this approach 'biased' or 'conditio... Read More about Classical stochastic dynamics and continuous matrix product states: gauge transformations, conditioned and driven processes, and equivalence of trajectory ensembles.

Front propagation versus bulk relaxation in the annealing dynamics of a kinetically constrained model of ultrastable glasses (2016)
Journal Article
Gutierrez, R., & Garrahan, J. P. (in press). Front propagation versus bulk relaxation in the annealing dynamics of a kinetically constrained model of ultrastable glasses. Journal of Statistical Mechanics: Theory and Experiment, 2016, https://doi.org/10.1088/1742-5468/2016/07/074005

Glasses prepared by physical vapour deposition have been shown to be remarkably more stable than those prepared by standard cooling protocols, with properties that appear to be similar to systems aged for extremely long times. When subjected to a rap... Read More about Front propagation versus bulk relaxation in the annealing dynamics of a kinetically constrained model of ultrastable glasses.

Towards a Theory of Metastability in Open Quantum Dynamics (2016)
Journal Article
Macieszczak, K., Guţă, M., Lesanovsky, I., & Garrahan, J. P. (2016). Towards a Theory of Metastability in Open Quantum Dynamics. Physical Review Letters, 116(24), Article 240404. https://doi.org/10.1103/PhysRevLett.116.240404

© 2016 American Physical Society. By generalizing concepts from classical stochastic dynamics, we establish the basis for a theory of metastability in Markovian open quantum systems. Partial relaxation into long-lived metastable states - distinct fro... Read More about Towards a Theory of Metastability in Open Quantum Dynamics.

Robustness of many-body localization in the presence of dissipation (2016)
Journal Article
Levi, E., Heyl, M., Lesanovsky, I., & Garrahan, J. P. (2016). Robustness of many-body localization in the presence of dissipation. Physical Review Letters, 116, Article 237203. https://doi.org/10.1103/PhysRevLett.116.237203

Many-body localization (MBL) has emerged as a novel paradigm for robust ergodicity breaking in closed quantum many-body systems. However, it is not yet clear to which extent MBL survives in the presence of dissipative processes induced by the couplin... Read More about Robustness of many-body localization in the presence of dissipation.

Signatures of many-body localisation in a system without disorder and the relation to a glass transition (2016)
Journal Article
Hickey, J. M., Genway, S., & Garrahan, J. P. (2016). Signatures of many-body localisation in a system without disorder and the relation to a glass transition. Journal of Statistical Mechanics: Theory and Experiment, 2016(5), https://doi.org/10.1088/1742-5468/2016/05/054047

We study a quantum spin system—adapted from a facilitated spin model for classical glasses—with local bilinear interactions and without quenched disorder which seems to display characteristic signatures of a many-body localisation (MBL) transition. F... Read More about Signatures of many-body localisation in a system without disorder and the relation to a glass transition.

Experimental observation of controllable kinetic constraints in a cold atomic gas (2016)
Journal Article
Valado, M., Simonelli, C., Hoogerland, M., Lesanovsky, I., Garrahan, J. P., Arimondo, E., …Morsch, O. (2016). Experimental observation of controllable kinetic constraints in a cold atomic gas. Physical Review A, 93(4), Article 040701. https://doi.org/10.1103/PhysRevA.93.040701

Many-body systems relaxing to equilibrium can exhibit complex dynamics even if their steady state is trivial. In situations where relaxation requires highly constrained local particle rearrangements, such as in glassy systems, this dynamics can be di... Read More about Experimental observation of controllable kinetic constraints in a cold atomic gas.

Emergence of cooperative dynamics in fully packed classical dimers (2016)
Journal Article
Oakes, T., Garrahan, J. P., & Powell, S. (2016). Emergence of cooperative dynamics in fully packed classical dimers. Physical Review E, 93(3), Article 032129. https://doi.org/10.1103/PhysRevE.93.032129

We study the behavior of classical dimer coverings of the square lattice—a paradigmatic model for systems subject to constraints—evolving under local stochastic dynamics, by means of Monte Carlo simulations and theoretical arguments. We observe clear... Read More about Emergence of cooperative dynamics in fully packed classical dimers.

Dynamical phase transitions as a resource for quantum enhanced metrology (2016)
Journal Article
Macieszczak, K., Gu??, M., Lesanovsky, I., & Garrahan, J. P. (2016). Dynamical phase transitions as a resource for quantum enhanced metrology. Physical Review A, 93(2), Article 022103. https://doi.org/10.1103/PhysRevA.93.022103

We consider the general problem of estimating an unknown control parameter of an open quantum system. We establish a direct relation between the evolution of both system and environment and the precision with which the parameter can be estimated. We... Read More about Dynamical phase transitions as a resource for quantum enhanced metrology.