Article
Physics, Particles & Fields
D. Bazeia, D. A. Ferreira, M. A. Marques
Summary: This study investigates thick branes in a single extra dimension modeled by a two-field configuration, including the cuscuton to control one of the fields' dynamics. Results show rich internal structure in branes, with novel geometry behavior governed by the parameter controlling the strength of the cuscuton term. The study also reveals significant modifications in the warp factor and energy density of the branes.
EUROPEAN PHYSICAL JOURNAL C
(2021)
Article
Physics, Particles & Fields
Joao Luis Rosa, D. A. Ferreira, Dionisio Bazeia, Francisco S. N. Lobo
Summary: The study focuses on 5-dimensional braneworld scenarios within the scalar-tensor representation of the generalized hybrid metric-Palatini gravitational theory. It shows that all models are stable against small fluctuations of the metric and that the gravitational zero mode profile can be controlled by the model's parameters, particularly in the presence of an additional scalar field.
EUROPEAN PHYSICAL JOURNAL C
(2021)
Article
Materials Science, Multidisciplinary
J. Beierlein, O. A. Egorov, T. H. Harder, P. Gagel, M. Emmerling, C. Schneider, S. Hoefling, U. Peschel, S. Klembt
Summary: This study reports on the Bloch oscillations of exciton-polaritons in an array of coupled microcavity waveguides, achieved by carefully designing the waveguide widths and mutual couplings to induce a constant energy gradient perpendicular to the direction of motion. This technique allows for direct observation and study of Bloch oscillations in real- and momentum-space, supported by numerical simulations based on a modified Gross-Pitaevskii approach. It represents an important application of quantum mechanics concepts to integrated solid state devices using quantum fluids of light.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Astronomy & Astrophysics
Oscar Henriksson
Summary: This study investigates the black brane evaporation process through the emission of D-branes and constructs static Euclidean solutions describing the nucleation of D3-branes on the conifold.
Article
Multidisciplinary Sciences
Rais S. Shaikhaidarov, Kyung Ho Kim, Jacob W. Dunstan, Ilya Antonov, Sven Linzen, Mario Ziegler, Dmitry S. Golubev, Vladimir N. Antonov, Evgeni Il'ichev, Oleg Astafiev
Summary: The dual Shapiro steps observed in this study are an important phenomenon in quantum mechanics and have significant implications for quantum voltage standards and future current standards. Direct observation of this effect in superconducting nanowires addresses the previously unavailable basic superconductivity effect.
Article
Multidisciplinary Sciences
Kai Wang, Avik Dutt, Ki Youl Yang, Casey C. Wojcik, Jelena Vuckovic, Shanhui Fan
Summary: The nontrivial topological features of non-Hermitian systems can be experimentally demonstrated and controlled by changing modulation waveforms. This topological winding allows for the synthesis and characterization of nontrivial phases in nonconservative systems.
Article
Multidisciplinary Sciences
Daniel Berghoff, Johannes Buehler, Mischa Bonn, Alfred Leitenstorfer, Torsten Meier, Heejae Kim
Summary: Berghoff et al. found that polycrystalline MAPbI(3) exhibits significant optical modulation and fast response time under moderate field strengths due to transient Wannier Stark localization. Despite its polycrystallinity, this low-cost material shows promise for light modulation and photonic applications.
NATURE COMMUNICATIONS
(2021)
Article
Physics, Multidisciplinary
J. Kluson
Summary: We propose an action for the D0-brane anti-D0-brane system with an exact solution corresponding to the marginal tachyon profile defined for arbitrary constant separation of these D-branes. We also find its covariant formulation and generalization to higher dimensional Dp-branes.
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
(2023)
Article
Chemistry, Analytical
Hongjing Li, Gaige Zheng
Summary: This paper demonstrates the generation of Bloch surface waves (BSWs) using a composite structure consisting of a coupling prism, distributed Bragg reflector (DBR) and cavity layer with Bi2Se3. The design allows for direct manipulation of the BSWs through the confinement of surface waves and the coupling between the plasmonic material (Bi2Se3) and DBR. The study shows sharp resonances associated with BSWs in the spectral domain.
Article
Materials Science, Multidisciplinary
Perry T. Mahon, Jason G. Kattan, J. E. Sipe
Summary: In this study, we derive macroscopic expressions for the polarization and orbital magnetization of a Chern insulator at its zero-temperature ground state, using a previously developed formalism for analyzing microscopic polarization and magnetization fields in extended media. Our results demonstrate that, in the case of a topologically trivial insulator, the macroscopic expressions coincide with those of modern theories of polarization and magnetization. However, in the case of a Chern insulator, we observe a generally nonvanishing microscopic free current density, while its macroscopic average is zero. Furthermore, the derived expression for polarization is qualitatively similar to that of the modern theory, whereas the expressions for orbital magnetization differ fundamentally, highlighting the distinctive philosophies of these theoretical frameworks.
Article
Multidisciplinary Sciences
Sein Park, Wonjun Lee, Seong Jang, Yong-Bin Choi, Jinho Park, Woochan Jung, Kenji Watanabe, Takashi Taniguchi, Gil Young Cho, Gil-Ho Lee
Summary: Engineering quantum states through light-matter interaction has created a new paradigm in condensed-matter physics. In this study, steady Floquet-Andreev states were successfully generated in graphene Josephson junctions and their spectral characteristics were quantitatively analyzed. This research provides a foundation for understanding and engineering non-equilibrium quantum states in nanodevices.
Article
Physics, Fluids & Plasmas
Li Gan, Stephane Ouvry, Alexios P. Polychronakos
Summary: This study investigates the enumeration problem of closed walks on the honeycomb lattice and maps it to a Hofstadter-like Hamiltonian. The results show a connection between the generating function of closed walks and the grand partition function of a particle system with exclusion statistics of order 2.
Article
Multidisciplinary Sciences
Matteo Lucchini, Fabio Medeghini, Yingxuan Wu, Federico Vismarra, Rocio Borrego-Varillas, Aurora Crego, Fabio Frassetto, Luca Poletto, Shunsuke A. Sato, Hannes Huebener, Umberto De Giovannini, Angel Rubio, Mauro Nisoli
Summary: The development of ultrafast laser science allows for the combination of Floquet engineering with extreme time resolution, enabling optical control of matter in the petahertz domain. The study demonstrates that a Floquet state can be observed with a driving field lasting for only 10 cycles and that the finite lifetime of the driven state can be explained using an analytical model based on Floquet theory. Controlling the duration of the driving laser pulse adds a new capability to the toolbox of Floquet engineering.
NATURE COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Mahendra Kumar, Surendra Prasad
Summary: The theoretical design of a mid infrared temperature sensor based on the resonance excitation of hybrid Tamm surface state is presented. By coupling graphene plasmon polaritons and hexagonal boron nitride phonon polaritons, an excellent sensing performance is achieved. The sensor has high detection accuracy, high quality factor, and high sensitivity, and its temperature sensing ability can be controlled by varying the number of unit cells and the resonant angles.
Article
Physics, Multidisciplinary
S. Bresolin, A. Roy, G. Ferrari, A. Recati, N. Pavloff
Summary: Close to the demixing transition, the degree of freedom associated with relative density fluctuations of a two-component Bose-Einstein condensate is described by a nondissipative Landau-Lifshitz equation. In the quasi-one-dimensional weakly immiscible case, this mapping surprisingly predicts that a dark-bright soliton should oscillate when subject to a constant force favoring separation of the two components. We propose a realistic experimental implementation of this phenomenon which we interpret as a spin -Josephson effect in the presence of a movable barrier.
PHYSICAL REVIEW LETTERS
(2023)
Article
Physics, Multidisciplinary
B. F. de Oliveira, M. de Moraes, D. Bazeia, A. Szolnoki
Summary: The model proposes a minimal off-lattice model of living organisms with few dynamical rules of growth, and reveals a rich variety of evolving patterns where player movement plays a decisive role. The collective drive of population members can compensate the negative consequences of intensive movement, and biased drive can alter the stable pattern, producing stripe-like states instead of hexagonal arrangements.
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
(2021)
Article
Physics, Multidisciplinary
D. Bazeia, M. Bongestab, B. F. de Oliveira
Summary: This study investigates the influence of the neighborhood in simple rock-paper-scissors models of biodiversity, showing that increasing the neighborhood significantly increases the characteristic length of the system. It also reveals the interesting phenomenon where modifying the competition method of certain species may result in the strongest individuals constituting the least abundant population.
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
(2022)
Article
Astronomy & Astrophysics
D. Bazeia, M. A. Liao, M. A. Marques
Summary: In this study, a Maxwell-Higgs system is coupled to a neutral scalar field with Z(2) symmetry, and the field equations at critical coupling are identified with those of an impurity-doped Maxwell-Higgs model. The impurity's form changes according to properties of the neutral scalar field, allowing for an interpretation of impurity parameters in terms of kink-like defects and a convenient way to generate impurities. Novel vortices with unique internal structures were found by solving the first order equations, and the procedure was adapted for impurity generation in the Chern-Simons-Higgs theory.
Article
Nanoscience & Nanotechnology
Alison A. Silva, Fabiano M. Andrade, D. Bazeia
Summary: This study investigates the average scattering entropy of quantum graphs and compares its behavior in different scenarios involving vertex distribution and topology. The results show that the average scattering entropy is influenced by the number of vertices and the topological arrangement of vertices and edges, making it a useful tool for exploring topological effects in quantum systems.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2022)
Article
Physics, Multidisciplinary
D. Bazeia, M. A. Marques, M. Paganelly
Summary: This work presents a method to manipulate the internal structure of localized configurations of the Bloch wall type. By considering a three-field model and using a first order formalism based on energy minimization, it is shown that the geometric arrangement of the Bloch wall can be changed by decoupling the third field, leading to diverse modifications of its internal structure. This procedure captures effects beyond the standard situation and can be applied in the study of magnetization in magnetic materials at the nanoscale.
EUROPEAN PHYSICAL JOURNAL PLUS
(2022)
Article
Physics, Multidisciplinary
A. J. Balseyro Sebastian, D. Bazeia, M. A. Marques
Summary: We investigate the possibility of building internal structure and asymmetry for kinks and domain walls in scalar field theories in the multifield scenario. This requires including an extra field associated with a function that modifies the dynamics of the other fields. We study minimum energy configurations that support first order equations compatible with the equations of motion. The extra field allows for a transition guided by a parameter, connecting the standard solution to a geometrically constrained one, mimicking the effects of geometrical constrictions in magnetic materials.
Article
Astronomy & Astrophysics
D. Bazeia, A. S. Lobao Jr, M. A. Marques, R. Menezes
Summary: We investigate braneworlds modeled by topological solutions that arise from the Cuscuta-Galileon model. We develop a first order framework and illustrate our procedure using the hyperbolic tangent profile of the scalar field. We find conditions for the model parameters to have solutions connecting minima of the potential and interpolating Minkowski and anti de Sitter geometries, as well as solutions only interpolating anti de Sitter geometry. In both cases, the gravity sector of the brane is stable against metric fluctuations.
Article
Mathematics, Interdisciplinary Applications
I. Andrade, D. Bazeia, M. A. Marques, R. Menezes
Summary: In this study, we investigate a Maxwell-scalar model that couples the scalar field and gauge field either through electric permittivity or in the presence of impurity. By considering one-dimensional space, we identify the conditions under which the model with impurity can be treated as an effective model for the Maxwell-scalar system, yielding similar solutions. We also explore a specific class of impurities that modifies the core of the scalar field and find the corresponding nontrivial charge densities and electric fields.
CHAOS SOLITONS & FRACTALS
(2023)
Article
Astronomy & Astrophysics
D. Bazeia, M. A. Liao, M. A. Marques
Summary: We investigate the presence of localized structures for relativistic scalar fields coupled to impurities in arbitrary spatial dimensions. It is shown that the inclusion of explicit coordinate dependence in the Lagrangian does not strongly hinder the existence of stable solutions compared to the impurity-free scenario. We find Bogomol'nyi equations that give rise to global minima of the energy and present some BPS configurations.
Article
Physics, Particles & Fields
D. Bazeia, M. A. Marques, M. Paganelly
Summary: This work investigates electrically charged structures localized in two and three spatial dimensions. The Maxwell-scalar Lagrangian is used to describe different systems with distinct interactions for scalar fields. The approach relies on finding first order differential equations that solve the equations of motion and ensure stability of the corresponding minimum energy solutions. The paper illustrates the various possibilities in two and three spatial dimensions, examining different examples of electrically charged solutions that have internal structure.
EUROPEAN PHYSICAL JOURNAL C
(2022)
Article
Physics, Particles & Fields
D. Bazeia, A. S. Lobao Jr
Summary: We investigate braneworld models with multiple scalar fields and generalized dynamics. The inclusion of cuscuton dynamics, using a new mechanism to control the internal structure of the brane in modified gravity, induces significant changes in the profile of the brane.
EUROPEAN PHYSICAL JOURNAL C
(2022)
Article
Physics, Particles & Fields
D. Bazeia, A. S. Lobao Jr
Summary: In this work, we investigate braneworlds generated by multiple scalar fields. The study focuses on the necessary formalism to examine models and evaluate the stability conditions of the gravitational sector under linear perturbations. Specifically, we develop a mechanism to explore distinct scenarios controlled by two and three fields, with a particular emphasis on how these fields can be utilized to modify the internal structure of the brane.
EUROPEAN PHYSICAL JOURNAL C
(2022)
Article
Physics, Particles & Fields
D. Bazeia, M. A. Liao, M. A. Marques
Summary: This paper investigates topological vortices in relativistic gauge theories in flat three-dimensional spacetime. By introducing complex scalar fields and generalized permeabilities, the features of static, finite energy solutions within this class of models are analyzed in detail, along with the effect of winding numbers on the magnetic properties of each subsystem. A BPS bound and first order equations are also introduced for a particular class of models, and specific models are solved to find solutions with distinct features compared to the standard Nielsen-Olesen vortex.
EUROPEAN PHYSICAL JOURNAL C
(2022)
Article
Physics, Particles & Fields
D. Bazeia, M. A. Marques, R. Menezes
Summary: This study examines an Abelian gauge field in the presence of an electric charge within a medium controlled by neutral scalar fields, which interact with the gauge field through a generalized dielectric function. The work introduces an interesting procedure based on energy minimization to solve the equations of motion, resulting in first order differential equations with minimum energy solutions. Two distinct models in two and three spatial dimensions are investigated, demonstrating general results with examples and analytical solutions that generate internal structure.
EUROPEAN PHYSICAL JOURNAL C
(2021)
Article
Astronomy & Astrophysics
D. Bazeia, A. Mohammadi, D. C. Moreira
Summary: This work studies modifications of fermion spectra interacting with kinklike structures in two-dimensional spacetime. The fermions are considered to have Yukawa couplings with scalar fields, and the results show the spectra change with parameters controlling the kinklike configuration and Yukawa coupling. The internal structure of the kinklike solution can respond to geometrical constraints, affecting the fermion spectra and potentially leading to new effects at the nanometric scale in electronic devices.
