All Outputs (147)

Machine learning stochastic differential equations for the evolution of order parameters of classical many-body systems in and out of equilibrium (2024)
Journal Article
Carnazza, F., Carollo, F., Martius, G., Andergassen, S., Klopotek, M., & Lesanovsky, I. (2024). Machine learning stochastic differential equations for the evolution of order parameters of classical many-body systems in and out of equilibrium. Machine Learning: Science and Technology, 5(4), Article 045002. https://doi.org/10.1088/2632-2153/ad7ad7

We develop a machine learning algorithm to infer the emergent stochastic equation governing the evolution of an order parameter of a many-body system. We train our neural network to independently learn the directed force acting on the order parameter... Read More about Machine learning stochastic differential equations for the evolution of order parameters of classical many-body systems in and out of equilibrium.

Stochastic Thermodynamics at the Quantum-Classical Boundary: A Self-Consistent Framework Based on Adiabatic-Response Theory (2024)
Journal Article
Eglinton, J., Carollo, F., Lesanovsky, I., & Brandner, K. (2024). Stochastic Thermodynamics at the Quantum-Classical Boundary: A Self-Consistent Framework Based on Adiabatic-Response Theory. Quantum, 8, Article 1486. https://doi.org/10.22331/q-2024-09-26-1486

Microscopic thermal machines promise to play an important role in future quantum technologies. Making such devices widely applicable will require effective strategies to channel their output into easily accessible storage systems like classical degre... Read More about Stochastic Thermodynamics at the Quantum-Classical Boundary: A Self-Consistent Framework Based on Adiabatic-Response Theory.

Symmetry breaking and non-ergodicity in a driven-dissipative ensemble of multilevel atoms in a cavity (2024)
Journal Article
Hernandez, E., Suarez, E., Lesanovsky, I., Olmos, B., Courteille, P. W., & Slama, S. (2024). Symmetry breaking and non-ergodicity in a driven-dissipative ensemble of multilevel atoms in a cavity. Physical Review Research, 6(3), Article L032072. https://doi.org/10.1103/physrevresearch.6.l032072

Dissipative light-matter systems can display emergent collective behavior. Here, we report a ℤ2-symmetry-breaking phase transition in a system of multilevel 87Rb atoms strongly coupled to a weakly driven two-mode optical cavity. In the symmetry-brok... Read More about Symmetry breaking and non-ergodicity in a driven-dissipative ensemble of multilevel atoms in a cavity.

Emergence of subharmonics in a microwave driven dissipative Rydberg gas (2024)
Journal Article
Liu, Z.-K., Sun, K.-H., Cabot, A., Carollo, F., Zhang, J., Zhang, Z.-Y., Zhang, L.-H., Liu, B., Han, T.-Y., Li, Q., Ma, Y., Chen, H.-C., Lesanovsky, I., Ding, D.-S., & Shi, B.-S. (2024). Emergence of subharmonics in a microwave driven dissipative Rydberg gas. Physical Review Research, 6(3), Article L032069. https://doi.org/10.1103/physrevresearch.6.l032069

Quantum many-body systems near phase transitions respond collectively to externally applied perturbations. We explore this phenomenon in a laser-driven dissipative Rydberg gas that is tuned to a bistable regime. Here two metastable phases coexist, wh... Read More about Emergence of subharmonics in a microwave driven dissipative Rydberg gas.

Avalanche Terahertz Photon Detection in a Rydberg Tweezer Array (2024)
Journal Article
Nill, C., Cabot, A., Trautmann, A., Groß, C., & Lesanovsky, I. (2024). Avalanche Terahertz Photon Detection in a Rydberg Tweezer Array. Physical Review Letters, 133(7), Article 073603. https://doi.org/10.1103/physrevlett.133.073603

We propose a protocol for the amplified detection of low-intensity terahertz radiation using Rydberg tweezer arrays. The protocol offers single photon sensitivity together with a low dark count rate. It is split into two phases: during a sensing phas... Read More about Avalanche Terahertz Photon Detection in a Rydberg Tweezer Array.

Large Deviation Full Counting Statistics in Adiabatic Open Quantum Dynamics (2024)
Journal Article
Paulino, P. J., Lesanovsky, I., & Carollo, F. (2024). Large Deviation Full Counting Statistics in Adiabatic Open Quantum Dynamics. Physical Review Letters, 132(26), Article 260402. https://doi.org/10.1103/PhysRevLett.132.260402

The state of an open quantum system undergoing an adiabatic process evolves by following the instantaneous stationary state of its time-dependent generator. This observation allows one to characterize, for a generic adiabatic evolution, the average d... Read More about Large Deviation Full Counting Statistics in Adiabatic Open Quantum Dynamics.

Large-scale universality in quantum reaction-diffusion from Keldysh field theory (2024)
Journal Article
Gerbino, F., Lesanovsky, I., & Perfetto, G. (2024). Large-scale universality in quantum reaction-diffusion from Keldysh field theory. Physical Review B, 109(22), Article L220304. https://doi.org/10.1103/physrevb.109.l220304

We consider the quantum reaction-diffusion dynamics in d spatial dimensions of a Fermi gas subject to binary annihilation reactions A+A→∅. These systems display collective nonequilibrium long-time behavior, which is signalled by an algebraic decay of... Read More about Large-scale universality in quantum reaction-diffusion from Keldysh field theory.

Tripartite quantum Rabi model with trapped Rydberg ions (2024)
Journal Article
Hamlyn, T. J., Zhang, C., Lesanovsky, I., & Li, W. (2024). Tripartite quantum Rabi model with trapped Rydberg ions. Physical Review Research, 6(2), Article 023223. https://doi.org/10.1103/PhysRevResearch.6.023223

We investigate a tripartite quantum Rabi model (TQRM) wherein a bosonic mode concurrently couples to two spin-1/2 particles through a spin-spin interaction, resulting in a spin-spin-boson coupling - a departure from conventional quantum Rabi models f... Read More about Tripartite quantum Rabi model with trapped Rydberg ions.

Spectral Signatures of Vibronic Coupling in Trapped Cold Ionic Rydberg Systems (2024)
Journal Article
Wilkinson, J. W., Li, W., & Lesanovsky, I. (2024). Spectral Signatures of Vibronic Coupling in Trapped Cold Ionic Rydberg Systems. Physical Review Letters, 132(22), Article 223401. https://doi.org/10.1103/physrevlett.132.223401

Atoms and ions confined with electric and optical fields form the basis of many current quantum simulation and computing platforms. When excited to high-lying Rydberg states, long-ranged dipole interactions emerge which strongly couple the electronic... Read More about Spectral Signatures of Vibronic Coupling in Trapped Cold Ionic Rydberg Systems.

Quantum thermodynamics of boundary time-crystals (2024)
Journal Article
Carollo, F., Lesanovsky, I., Antezza, M., & De Chiara, G. (2024). Quantum thermodynamics of boundary time-crystals. Quantum Science and Technology, 9(3), Article 035024. https://doi.org/10.1088/2058-9565/ad3f42

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 aspects of time-crystals have been extensively explored over the recent year... Read More about Quantum thermodynamics of boundary time-crystals.

Universal and nonuniversal probability laws in Markovian open quantum dynamics subject to generalized reset processes (2024)
Journal Article
Carollo, F., Lesanovsky, I., & Garrahan, J. P. (2024). Universal and nonuniversal probability laws in Markovian open quantum dynamics subject to generalized reset processes. Physical Review E, 109(4), Article 044129. https://doi.org/10.1103/physreve.109.044129

We consider quantum-jump trajectories of Markovian open quantum systems subject to stochastic in time resets of their state to an initial configuration. The reset events provide a partitioning of quantum trajectories into consecutive time intervals,... Read More about Universal and nonuniversal probability laws in Markovian open quantum dynamics subject to generalized reset processes.

Inferring interpretable dynamical generators of local quantum observables from projective measurements through machine learning (2024)
Journal Article
Cemin, G., Carnazza, F., Andergassen, S., Martius, G., Carollo, F., & Lesanovsky, I. (2024). Inferring interpretable dynamical generators of local quantum observables from projective measurements through machine learning. Physical Review Applied, 21(4), Article L041001. https://doi.org/10.1103/physrevapplied.21.l041001

To characterize the dynamical behavior of many-body quantum systems, one is usually interested in the evolution of so-called order parameters rather than in characterizing the full quantum state. In many situations, these quantities coincide with the... Read More about Inferring interpretable dynamical generators of local quantum observables from projective measurements through machine learning.

Quantum reaction-limited reaction–diffusion dynamics of noninteracting Bose gases (2024)
Journal Article
Rowlands, S., Lesanovsky, I., & Perfetto, G. (2024). Quantum reaction-limited reaction–diffusion dynamics of noninteracting Bose gases. New Journal of Physics, 26(4), Article 043010. https://doi.org/10.1088/1367-2630/ad397a

We investigate quantum reaction–diffusion (RD) systems in one-dimension with bosonic particles that coherently hop in a lattice, and when brought in range react dissipatively. Such reactions involve binary annihilation (A + A → ∅) and coagulation (A... Read More about Quantum reaction-limited reaction–diffusion dynamics of noninteracting Bose gases.

Coherent Spin-Phonon Scattering in Facilitated Rydberg Lattices (2024)
Journal Article
Magoni, M., Nill, C., & Lesanovsky, I. (2024). Coherent Spin-Phonon Scattering in Facilitated Rydberg Lattices. Physical Review Letters, 132(13), Article 133401. https://doi.org/10.1103/physrevlett.132.133401

We investigate the dynamics of a one-dimensional spin system with facilitation constraint that can be studied using Rydberg atoms in arrays of optical tweezer traps. The elementary degrees of freedom of the system are domains of Rydberg excitations t... Read More about Coherent Spin-Phonon Scattering in Facilitated Rydberg Lattices.

Numerical simulation of long-range open quantum many-body dynamics with tree tensor networks (2024)
Journal Article
Sulz, D., Lubich, C., Ceruti, G., Lesanovsky, I., & Carollo, F. (2024). Numerical simulation of long-range open quantum many-body dynamics with tree tensor networks. Physical Review A, 109(2), Article 022420. https://doi.org/10.1103/physreva.109.022420

Open quantum systems provide a conceptually simple setting for the exploration of collective behavior stemming from the competition between quantum effects, many-body interactions, and dissipative processes. They may display dynamics distinct from th... Read More about Numerical simulation of long-range open quantum many-body dynamics with tree tensor networks.

Continuous Sensing and Parameter Estimation with the Boundary Time Crystal (2024)
Journal Article
Cabot, A., Carollo, F., & Lesanovsky, I. (2024). Continuous Sensing and Parameter Estimation with the Boundary Time Crystal. Physical Review Letters, 132(5), Article 050801. https://doi.org/10.1103/physrevlett.132.050801

A boundary time crystal is a quantum many-body system whose dynamics is governed by the competition between coherent driving and collective dissipation. It is composed of N two-level systems and features a transition between a stationary phase and an... Read More about Continuous Sensing and Parameter Estimation with the Boundary Time Crystal.

Entangled time-crystal phase in an open quantum light-matter system (2023)
Journal Article
Mattes, R., Lesanovsky, I., & Carollo, F. (2023). Entangled time-crystal phase in an open quantum light-matter system. Physical Review A, 108(6), Article 062216. https://doi.org/10.1103/physreva.108.062216

Time crystals are nonequilibrium many-body phases in which the state of the system dynamically approaches a limit cycle. While these phases have recently been the focus of intensive research, it is still far from clear whether they can host quantum c... Read More about Entangled time-crystal phase in an open quantum light-matter system.

Quantum reaction-limited reaction-diffusion dynamics of annihilation processes (2023)
Journal Article
Perfetto, G., Carollo, F., Garrahan, J. P., & Lesanovsky, I. (2023). Quantum reaction-limited reaction-diffusion dynamics of annihilation processes. Physical Review E, 108(6), Article 064104. https://doi.org/10.1103/physreve.108.064104

We investigate the quantum reaction-diffusion dynamics of fermionic particles which coherently hop in a one-dimensional lattice and undergo annihilation reactions. The latter are modelled as dissipative processes which involve losses of pairs 2A→∅, t... Read More about Quantum reaction-limited reaction-diffusion dynamics of annihilation processes.

Rydberg-ion flywheel for quantum work storage (2023)
Journal Article
Martins, W. S., Carollo, F., Li, W., Brandner, K., & Lesanovsky, I. (2023). Rydberg-ion flywheel for quantum work storage. Physical Review A, 108(5), Article L050201. https://doi.org/10.1103/PhysRevA.108.L050201

Trapped ions provide a platform for quantum technologies that offers long coherence times and high degrees of scalability and controllability. Here, we use this platform to develop a realistic model of a thermal device consisting of two laser-driven,... Read More about Rydberg-ion flywheel for quantum work storage.

Thermodynamics of Quantum Trajectories on a Quantum Computer (2023)
Journal Article
Cech, M., Lesanovsky, I., & Carollo, F. (2023). Thermodynamics of Quantum Trajectories on a Quantum Computer. Physical Review Letters, 131(12), Article 120401. https://doi.org/10.1103/physrevlett.131.120401

Quantum computers have recently become available as noisy intermediate-scale quantum devices. Already these machines yield a useful environment for research on quantum systems and dynamics. Building on this opportunity, we investigate open-system dyn... Read More about Thermodynamics of Quantum Trajectories on a Quantum Computer.