Outputs (12)

Quantum and Classical Temporal Correlations in (1+1)D Quantum Cellular Automata (2021)
Journal Article
Gillman, E., Carollo, F., & Lesanovsky, I. (2021). Quantum and Classical Temporal Correlations in (1+1)D Quantum Cellular Automata. Physical Review Letters, 127(23), Article 230502. https://doi.org/10.1103/PhysRevLett.127.230502

We employ (1 + 1)-dimensional quantum cellular automata to study the evolution of entangle-ment and coherence near criticality in quantum systems that display non-equilibrium steady-state phase transitions. This construction permits direct access to... Read More about Quantum and Classical Temporal Correlations in (1+1)D Quantum Cellular Automata.

Multipolar Fermi-surface deformation in a Rydberg-dressed Fermi gas with long-range anisotropic interactions (2021)
Journal Article
Zhou, Y., Nath, R., Wu, H., Lesanovsky, I., & Li, W. (2021). Multipolar Fermi-surface deformation in a Rydberg-dressed Fermi gas with long-range anisotropic interactions. Physical Review A, 104(6), Article L061302. https://doi.org/10.1103/physreva.104.l061302

We study theoretically the deformation of the Fermi surface (FS) of a three-dimensional gas of Rydberg-dressed 6Li atoms. The laser dressing to high-lying Rydberg D states results in angle-dependent soft-core-shaped interactions whose anisotropy is d... Read More about Multipolar Fermi-surface deformation in a Rydberg-dressed Fermi gas with long-range anisotropic interactions.

Designing nonequilibrium states of quantum matter through stochastic resetting (2021)
Journal Article
Perfetto, G., Carollo, F., Magoni, M., & Lesanovsky, I. (2021). Designing nonequilibrium states of quantum matter through stochastic resetting. Physical Review B, 104(18), Article L180302. https://doi.org/10.1103/PhysRevB.104.L180302

We consider closed quantum many-body systems subject to stochastic resetting. This means that their unitary time evolution is interrupted by resets at randomly selected times. When a reset takes place, the system is reinitialized to a state chosen fr... Read More about Designing nonequilibrium states of quantum matter through stochastic resetting.

Microscopic biasing of discrete-time quantum trajectories (2021)
Journal Article
Cilluffo, D., Buonaiuto, G., Lesanovsky, I., Carollo, A., Lorenzo, S., Palma, G. M., …Carollo, F. (2021). Microscopic biasing of discrete-time quantum trajectories. Quantum Science and Technology, 6(4), Article 045011. https://doi.org/10.1088/2058-9565/ac15e2

We develop a microscopic theory for biasing the quantum trajectories of an open quantum system, which renders rare trajectories typical. To this end we consider a discrete-time quantum dynamics, where the open system collides sequentially with qubit... Read More about Microscopic biasing of discrete-time quantum trajectories.

Collectively Encoded Rydberg Qubit (2021)
Journal Article
Spong, N. L. R., Jiao, Y., Hughes, O. D. W., Weatherill, K. J., Lesanovsky, I., & Adams, C. S. (2021). Collectively Encoded Rydberg Qubit. Physical Review Letters, 127(6), Article 063604. https://doi.org/10.1103/PhysRevLett.127.063604

We demonstrate a collectively-encoded qubit based on a single Rydberg excitation stored in an ensemble of N entangled atoms. Qubit rotations are performed by applying microwave fields that drive excitations between Rydberg states. Coherent read-out i... Read More about Collectively Encoded Rydberg Qubit.

Collectively Encoded Rydberg Qubit (2021)
Journal Article
Spong, N. L. R., Jiao, Y., Hughes, O. D. W., Weatherill, K. J., Lesanovsky, I., & Adams, C. S. (2021). Collectively Encoded Rydberg Qubit. Physical Review Letters, 127(6), Article 063604. https://doi.org/10.1103/PhysRevLett.127.063604

We demonstrate a collectively encoded qubit based on a single Rydberg excitation stored in an ensemble of N entangled atoms. Qubit rotations are performed by applying microwave fields that drive excitations between Rydberg states. Coherent readout is... Read More about Collectively Encoded Rydberg Qubit.

Exponentially accelerated approach to stationarity in Markovian open quantum systems through the Mpemba effect (2021)
Journal Article
Carollo, F., Lasanta, A., & Lesanovsky, I. (2021). Exponentially accelerated approach to stationarity in Markovian open quantum systems through the Mpemba effect. Physical Review Letters, 127(6), Article 060401. https://doi.org/10.1103/PhysRevLett.127.060401

Ergodicity-breaking and slow relaxation are intriguing aspects of nonequilibrium dynamics both in classical and in quantum settings. These phenomena are typically associated with phase transitions, e.g. the emergence of metastable regimes near a firs... Read More about Exponentially accelerated approach to stationarity in Markovian open quantum systems through the Mpemba effect.

Theory of classical metastability in open quantum systems (2021)
Journal Article
Macieszczak, K., Rose, D. C., Lesanovsky, I., & Garrahan, J. P. (2021). Theory of classical metastability in open quantum systems. Physical Review Research, 3(3), 1-26. https://doi.org/10.1103/PhysRevResearch.3.033047

We present a general theory of classical metastability in open quantum systems. Metastability is a consequence of a large separation in timescales in the dynamics, leading to the existence of a regime when states of the system appear stationary, befo... Read More about Theory of classical metastability in open quantum systems.

Exactness of Mean-Field Equations for Open Dicke Models with an Application to Pattern Retrieval Dynamics (2021)
Journal Article
Carollo, F., & Lesanovsky, I. (2021). Exactness of Mean-Field Equations for Open Dicke Models with an Application to Pattern Retrieval Dynamics. Physical Review Letters, 126(23), Article 230601. https://doi.org/10.1103/physrevlett.126.230601

Open quantum Dicke models are paradigmatic systems for the investigation of light-matter interaction in out-of-equilibrium quantum settings. Albeit being structurally simple, these models can show intriguing physics. However, obtaining exact results... Read More about Exactness of Mean-Field Equations for Open Dicke Models with an Application to Pattern Retrieval Dynamics.

Machine learning time-local generators of open quantum dynamics (2021)
Journal Article
Mazza, P. P., Zietlow, D., Carollo, F., Andergassen, S., Martius, G., & Lesanovsky, I. (2021). Machine learning time-local generators of open quantum dynamics. Physical Review Research, 3(2), Article 023084. https://doi.org/10.1103/physrevresearch.3.023084

In the study of closed many-body quantum systems one is often interested in the evolution of a subset of degrees of freedom. On many occasions it is possible to approach the problem by performing an appropriate decomposition into a bath and a system.... Read More about Machine learning time-local generators of open quantum dynamics.