Beatriz Olmos
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View article: Hybrid sub- and superradiant states in emitter arrays with quantized motion
Hybrid sub- and superradiant states in emitter arrays with quantized motion Open
Ensembles of dipolar emitters which couple collectively to the radiation field display sub- and superradiance. These terms refer to a reduction or an enhancement of photon emission rates due to the interference of emission channels. Arrays…
View article: Dipolar ordering transitions in many-body quantum optics: Analytical diagrammatic approach to equilibrium quantum spins
Dipolar ordering transitions in many-body quantum optics: Analytical diagrammatic approach to equilibrium quantum spins Open
Quantum spin models with a large number of interaction partners per spin are\nfrequently used to describe modern many-body quantum optical systems like\narrays of Rydberg atoms, atom-cavity systems or trapped ion crystals. For\ntheoretical…
View article: Topological photon pumping in quantum optical systems
Topological photon pumping in quantum optical systems Open
We establish the concept of topological pumping in one-dimensional systems with long-range couplings and apply it to the transport of a photon in quantum optical systems. In our theoretical investigation, we introduce an extended version o…
View article: Symmetry breaking and non-ergodicity in a driven-dissipative ensemble of multilevel atoms in a cavity
Symmetry breaking and non-ergodicity in a driven-dissipative ensemble of multilevel atoms in a cavity Open
Dissipative light-matter systems can display emergent collective behavior. Here, we report a Z2-symmetry-breaking phase transition in a system of multilevel Rb87 atoms strongly coupled to a weakly driven two-mode optical cavity. In the sym…
View article: Spin self-organization in an optical cavity facilitated by inhomogeneous broadening
Spin self-organization in an optical cavity facilitated by inhomogeneous broadening Open
We study the onset of collective spin-self-organization in a thermal ensemble of driven two-level atoms confined in an optical cavity. The atoms spontaneously form a spin-pattern above a critical driving strength that sets a threshold and …
View article: Symmetry breaking and non-ergodicity in a driven-dissipative ensemble of multi-level atoms in a cavity
Symmetry breaking and non-ergodicity in a driven-dissipative ensemble of multi-level atoms in a cavity Open
Dissipative light-matter systems can display emergent collective behavior. Here, we report a $\mathbb{Z}_2$-symmetry-breaking phase transition in a system of multi-level $^{87}$Rb atoms strongly coupled to a weakly driven two-mode optical …
View article: Topological photon pumping in quantum optical systems
Topological photon pumping in quantum optical systems Open
We establish the concept of topological pumping in one-dimensional systems with long-range couplings and apply it to the transport of a photon in quantum optical systems. In our theoretical investigation, we introduce an extended version o…
View article: Modified dipole-dipole interactions in the presence of a nanophotonic waveguide
Modified dipole-dipole interactions in the presence of a nanophotonic waveguide Open
When an emitter ensemble interacts with the electromagnetic field, dipole-dipole interactions are induced between the emitters. The magnitude and shape of these interactions are fully determined by the specific form of the electromagnetic …
View article: Figures, Data and Code of "Dispersionless subradiant photon storage in one-dimensional emitter chains"
Figures, Data and Code of "Dispersionless subradiant photon storage in one-dimensional emitter chains" Open
This project contains the figures, data and code for the publication "Dispersionless subradiant photon storage in one-dimensional emitter chains". In particular it contains: - code: - 'main.py' file to start the preparation of the figures.…
View article: Figures, Data and Code of "Dispersionless subradiant photon storage in one-dimensional emitter chains"
Figures, Data and Code of "Dispersionless subradiant photon storage in one-dimensional emitter chains" Open
This project contains the figures, data and code for the publication "Dispersionless subradiant photon storage in one-dimensional emitter chains". In particular it contains: - code: - 'main.py' file to start the preparation of the figures.…
View article: Dispersionless subradiant photon storage in one-dimensional emitter chains
Dispersionless subradiant photon storage in one-dimensional emitter chains Open
Atomic emitter ensembles couple collectively to the radiation field. Although an excitation on a single emitter may be short-lived, a collection of them can contain a photon several orders of magnitude longer than the single emitter lifeti…
View article: Data of publication: "Collective atom-cavity coupling and nonlinear dynamics with atoms with multilevel ground states"
Data of publication: "Collective atom-cavity coupling and nonlinear dynamics with atoms with multilevel ground states" Open
The uploaded files contain the raw data of the measurements and simulations presented in https://doi.org/10.1103/PhysRevA.107.023714
View article: Data of publication: "Collective atom-cavity coupling and nonlinear dynamics with atoms with multilevel ground states"
Data of publication: "Collective atom-cavity coupling and nonlinear dynamics with atoms with multilevel ground states" Open
The uploaded files contain the raw data of the measurements and simulations presented in https://doi.org/10.1103/PhysRevA.107.023714
View article: Collective atom-cavity coupling and nonlinear dynamics with atoms with multilevel ground states
Collective atom-cavity coupling and nonlinear dynamics with atoms with multilevel ground states Open
We investigate experimentally and theoretically the collective coupling between atoms with multilevel ground-state manifolds and an optical cavity mode. In our setup the cavity field optically pumps populations among the ground states. The…
View article: Many-Body Radiative Decay in Strongly Interacting Rydberg Ensembles
Many-Body Radiative Decay in Strongly Interacting Rydberg Ensembles Open
When atoms are excited to high-lying Rydberg states they interact strongly with dipolar forces. The resulting state-dependent level shifts allow us to study many-body systems displaying intriguing nonequilibrium phenomena, such as constrai…
View article: Data of publication: "Many-Body Radiative Decay in Strongly Interacting Rydberg Ensembles"
Data of publication: "Many-Body Radiative Decay in Strongly Interacting Rydberg Ensembles" Open
The uploaded files contain the data of the simulations presented in the figures in https://doi.org/10.1103/PhysRevLett.129.243202.
View article: Data of publication: "Many-Body Radiative Decay in Strongly Interacting Rydberg Ensembles"
Data of publication: "Many-Body Radiative Decay in Strongly Interacting Rydberg Ensembles" Open
The uploaded files contain the data of the simulations presented in the figures in https://doi.org/10.1103/PhysRevLett.129.243202.
View article: Modified dipole-dipole interactions in the presence of a nanophotonic waveguide
Modified dipole-dipole interactions in the presence of a nanophotonic waveguide Open
When an emitter ensemble interacts with the electromagnetic field, dipole-dipole interactions are induced between the emitters. The magnitude and shape of these interactions are fully determined by the specific form of the electromagnetic …
View article: Collective atom-cavity coupling and non-linear dynamics with atoms with multilevel ground states
Collective atom-cavity coupling and non-linear dynamics with atoms with multilevel ground states Open
We investigate experimentally and theoretically the collective coupling between atoms with multilevel ground state manifolds and an optical cavity mode. In our setup the cavity field optically pumps populations among the ground states. The…
View article: Subradiant edge states in an atom chain with waveguide-mediated hopping
Subradiant edge states in an atom chain with waveguide-mediated hopping Open
We analyze the topological and dynamical properties of a system formed by two chains of identical emitters coupled to a waveguide, whose guided modes induce all-to-all excitation hopping. We find that, in the single excitation limit, the b…
View article: Many-body radiative decay in strongly interacting Rydberg ensembles
Many-body radiative decay in strongly interacting Rydberg ensembles Open
When atoms are excited to high-lying Rydberg states they interact strongly with dipolar forces. The resulting state-dependent level shifts allow to study many-body systems displaying intriguing nonequilibrium phenomena, such as constrained…
View article: Subradiant edge states in an atom chain with waveguide-mediated hopping
Subradiant edge states in an atom chain with waveguide-mediated hopping Open
We analyze the topological and dynamical properties of a system formed by two chains of identical emitters coupled to a waveguide, whose guided modes induce all-to-all excitation hopping. We find that, in the single excitation limit, the b…
View article: Bragg condition for scattering into a guided optical mode
Bragg condition for scattering into a guided optical mode Open
We theoretically investigate light scattering from an array of atoms into the guided modes of a waveguide. We show that the scattering of a plane wave laser field into the waveguide modes is dramatically enhanced for angles that deviate fr…
View article: Dynamical Phases and Quantum Correlations in an Emitter-Waveguide System with Feedback
Dynamical Phases and Quantum Correlations in an Emitter-Waveguide System with Feedback Open
We investigate the creation and control of emergent collective behavior and quantum correlations using feedback in an emitter-waveguide system using a minimal model. Employing homodyne detection of photons emitted from a laser-driven emitt…
View article: Measurement-feedback control of the chiral photon emission from an atom chain into a nanofiber
Measurement-feedback control of the chiral photon emission from an atom chain into a nanofiber Open
We theoretically investigate measurement-based feedback control of a laser-driven one-dimensional atomic chain interfaced with a nanofiber. The interfacing leads to all-to-all interactions among the atomic emitters and induces chirality (i…
View article: Interaction signatures and non-Gaussian photon states from a strongly driven atomic ensemble coupled to a nanophotonic waveguide
Interaction signatures and non-Gaussian photon states from a strongly driven atomic ensemble coupled to a nanophotonic waveguide Open
We study theoretically a laser-driven one-dimensional chain of atoms interfaced with the guided optical modes of a nanophotonic waveguide. The period of the chain and the orientation of the laser field can be chosen such that emission occu…
View article: Collectively Enhanced Chiral Photon Emission from an Atomic Array near a Nanofiber
Collectively Enhanced Chiral Photon Emission from an Atomic Array near a Nanofiber Open
Emitter ensembles interact collectively with the radiation field. In the case of a one-dimensional array of atoms near a nanofiber, this collective light-matter interaction does not only lead to an increased photon coupling to the guided m…
View article: Dynamical creation and detection of entangled many-body states in a chiral atom chain
Dynamical creation and detection of entangled many-body states in a chiral atom chain Open
Open quantum systems with chiral interactions can be realized by coupling atoms to guided radiation modes in photonic waveguides or optical fibers. In their steady state these systems can feature intricate many-body phases such as entangle…
View article: Dressed dense atomic gases
Dressed dense atomic gases Open
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View article: Substrate-induced shifts and screening in the fluorescence spectra of supramolecular adsorbed organic monolayers
Substrate-induced shifts and screening in the fluorescence spectra of supramolecular adsorbed organic monolayers Open
We have investigated the influence of the substrate on the fluorescence of adsorbed organic molecules. Monolayer films of perylene-3,4,9,10-tetracarboxylic-3,4,9,10-diimide (PTCDI), a supramolecular network formed from PTCDI and melamine, …