Review
Chemistry, Multidisciplinary
Jaehyuck Jang, Minsu Jeong, Jihae Lee, Seokwoo Kim, Huichang Yun, Junsuk Rho
Summary: This article reviews the integration of low-dimensional light-emitting materials with optical cavities. By amplifying and optimizing the emission of low-dimensional materials through optical cavities, the interaction between light and matter can be enhanced, providing new opportunities for nanophotonic devices based on low-dimensional emitters.
ADVANCED MATERIALS
(2023)
Article
Optics
V. O. Martynov, V. O. Munyaev, L. A. Smirnov
Summary: This study explores the quantum properties of light in a coupled nonlinear waveguide array, forming a discrete soliton. It demonstrates the possibility of using certain types of quasi-solitons to create continuous variable entanglement between waveguide pairs, and the potential to independently entangle multiple pairs of waveguides. The study shows that the entanglement can be achieved even with high intensity input laser fields, without the need for materials with extremely high nonlinearity coefficients. Absorption in the waveguide media also has minimal influence on the discussed process.
LASER PHYSICS LETTERS
(2022)
Article
Physics, Multidisciplinary
Manuel Crespo-Ballesteros, Misha Sumetsky
Summary: The researchers have designed a miniature device that can control the transport of light by launching whispering gallery solitons into an optical fiber. The solitons slowly propagate along the fiber and load/unload optical pulses at designated locations. The speed and direction of the solitons are controlled by minuscule variations in the effective fiber radius.
PHYSICAL REVIEW LETTERS
(2021)
Article
Nanoscience & Nanotechnology
Nikita Nefedkin, Michele Cotrufo, Andrea Alu
Summary: Nonreciprocity originating from classical interactions among nonlinear scatterers is explored in this work, offering a promising tool for quantum information processing and quantum computing. It is shown that large nonreciprocal responses can be achieved in nonlinear systems by controlling the position and transition frequencies of the atoms, without requiring a nonreciprocal environment. The connection between this effect and the asymmetric population of a slowly decaying dark state is demonstrated.
Article
Optics
Yun-Ru Fan, Chen Lyu, Chen-Zhi Yuan, Guang-Wei Deng, Zhi-Yuan Zhou, Yong Geng, Hai-Zhi Song, You Wang, Yan-Feng Zhang, Rui-Bo Jin, Heng Zhou, Li-Xing You, Zhen Wang, Guang-Can Guo, Qiang Zhou
Summary: This study demonstrates a multi-wavelength quantum light source using a silicon nitride micro-ring with a free spectral range of 200 GHz. By optimizing the device and using noise-rejecting filters, the source can generate eight-wavelength-paired photon pairs in a wavelength range of 25.6 nm. It also enables the generation of heralded single-photons at a rate of 62 kHz with gh(2)(0)=0.014 & PLUSMN;0.001$g<^>{(2)}_{h}(0)=0.014\pm 0.001$ and energy-time entangled photons with a visibility of 99.39 & PLUSMN;0.45%$99.39\pm 0.45\%$ in the Franson interferometer. These results, achieved at room temperature and telecom wavelength, on a CMOS-compatible platform, represent a significant step towards integrated quantum photonic devices and the realization of large-scale quantum networks.
LASER & PHOTONICS REVIEWS
(2023)
Article
Optics
S. E. Skipetrov, P. Wulles
Summary: We study the influence of disorder on topological phenomena in honeycomb lattices of atoms coupled by the electromagnetic field. Disorder can induce transitions between different topological phases and drive the system into a topological Anderson insulator state. The nontrivial topology of the photonic band structure can suppress Anderson localization of disorder-induced modes in the band gap of the ideal lattice. Moreover, disorder can open a topological pseudogap and introduce spatially localized modes in an otherwise topologically trivial system.
Article
Engineering, Electrical & Electronic
Zhengqi Liu, Xiaoshan Liu, Yan Wang, Guiqiang Liu, Chaojun Tang
Summary: A new multi-band absorber platform is proposed in this study, which can quantitatively adjust the resonant frequency and intensity using silicon resonators to achieve near 100% maximum absorptance. The operation wavelengths show a linear relationship to the resonator's height, and absorption efficiencies can be quantitatively controlled by the polarization angle of the incident light.
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
(2021)
Article
Nanoscience & Nanotechnology
Dominic Hallett, Andrew P. Foster, David Whittaker, Maurice S. Skolnick, Luke R. Wilson
Summary: This study demonstrates numerically that spin-dependent chiral coupling can be achieved by embedding a quantum emitter with circularly polarized optical transitions in a waveguide-coupled nanocavity. The experimentally feasible cavity design supports high chiral contrast, efficient cavity-waveguide coupling, and enhanced light-matter interaction strength.
Article
Optics
Nuo Chen, Zijie Wang, Jingpeng Wu, Hanghang Li, Shiqi He, Zhuang Fan, Yunru Fan, Xinliang Zhang, Qiang Zhou, Jing Xu
Summary: Photon pairs generated in microresonators are crucial for optical quantum information technologies. The maximum PGR and power efficiency can be balanced by manipulating the resonance linewidth.
Article
Multidisciplinary Sciences
Mohammadamin Tajik, Marek Gluza, Nicolas Sebe, Philipp Schuettelkopf, Federica Cataldini, Joao Sabino, Frederik Moller, Si-Cong Ji, Sebastian Erne, Giacomo Guarnieri, Spyros Sotiriadis, Jens Eisert, Jorg Schmiedmayer
Summary: We investigate signal propagation in a quantum field simulator of the Klein-Gordon model using two strongly coupled parallel one-dimensional quasi-condensates. We observe the propagation of correlations along sharp light-cone fronts by measuring local phononic fields after a quench. The curved propagation fronts and reflection at sharp edges are observed when the local atomic density is inhomogeneous. By comparing the data with theoretical predictions, we find agreement with curved geodesics of an inhomogeneous metric.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Optics
Eugen Pavel
Summary: A nanoscale coherent light source, known as Light Amplification by Quantum Confinement (LAQC), has been achieved and operates at room temperature during Quantum Optical Lithography studies. The proposed model for LAQC light burst involves Tb3+ ions as fluorescent emitters, and experimental conditions for an emission disc with a diameter of 10 nm have been selected. The differences between LAQC, superradiance, and superflourescence are discussed in the study.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
H. Y. Gao, L. F. Wei
Summary: In this paper, an alternative approach is proposed to characterize the physical features of a nanomechanical resonator (NMR) embedded in a rf-SQUID based superconducting qubit by probing the scattering spectra of the quantum mechanical prober coupled to the driving microwaves. The vibrational features (classical or quantum mechanical) and physical parameters (such as vibrational frequency and displacements) of the NMR can be effectively determined from the observed specific frequency points (dips or peaks) in the spectra. The proposal is feasible with the current technique and useful for designing desired NMRs for various quantum metrological applications.
SCIENTIFIC REPORTS
(2023)
Article
Nanoscience & Nanotechnology
Robert Sittig, Cornelius Nawrath, Sascha Kolatschek, Stephanie Bauer, Richard Schaber, Jiasheng Huang, Ponraj Vijayan, Pascal Pruy, Simone Luca Portalupi, Michael Jetter, Peter Michler
Summary: In this study, a novel InGaAs metamorphic buffer is developed using metal-organic vapor-phase epitaxy (MOVPE) with a nonlinear indium content grading profile. The thin-film buffer allows for the necessary transition of the lattice constant and provides a smooth surface for the growth of InAs quantum dots, resulting in single-photon emission at 1550 nm. The successful integration of this new design into a photonic resonator demonstrates its potential for high-quality nonclassical light sources in telecommunication.
Article
Physics, Multidisciplinary
Pavel D. Kurilovich, Vladislav D. Kurilovich, Jose Lebreuilly, Steven M. Girvin
Summary: Particle loss poses a significant challenge for the preparation of strongly correlated many-body states of photons. The effectiveness of a stabilization setup that injects new photons to compensate for the lost ones is compromised in fractional quantum Hall states. The presence of isolated quasiholes, formed due to lost photons, proliferates in the steady-state and hinders the quality of state preparation. The motion of quasiholes exhibits diffusive behavior, further complicating the creation and stabilization of strongly correlated states with photons.
Article
Chemistry, Multidisciplinary
Arianne Brooks, Xiao-Liu Chu, Zhe Liu, Ruediger Schott, Arne Ludwig, Andreas D. Wieck, Leonardo Midolo, Peter Lodahl, Nir Rotenberg
Summary: Tailored photonics cavities are used to enhance light-matter interactions, creating a fully coherent quantum interface. An integrated microdisk cavity containing self-assembled quantum dots is reported here, showing coherent routing of photons and clear signatures of coherent scattering by the quantum dots. Control of photon routing between access waveguides is achieved by tuning the quantum dot and resonator detuning or adjusting the excitation beam strength, with a critical photon number less than one photon per lifetime being required.
Article
Physics, Multidisciplinary
Stefano Zippilli, David Vitali
Summary: The study investigates the dissipative preparation of many-body entangled Gaussian states in bosonic lattice models, using minimal resources. It is shown that a wide range of pure states, including nontrivial multipartite entangled states suitable for measurement-based quantum computation, can be prepared in the steady state by applying a generic passive Gaussian transformation on a set of equally squeezed modes.
PHYSICAL REVIEW LETTERS
(2021)
Article
Quantum Science & Technology
Titas Chanda, Rebecca Kraus, Giovanna Morigi, Jakub Zakrzewski
Summary: Topological materials have potential applications in quantum technologies and a model where topology emerges from quantum interference is discussed. The study shows that quantum interference can lead to the emergence of topological insulators, which can be realized in experiments.
Article
Computer Science, Theory & Methods
Vincenzo Bonifaci, Enrico Facca, Frederic Folz, Andreas Karrenbauer, Pavel Kolev, Kurt Mehlhorn, Giovanna Morigi, Golnoosh Shahkarami, Quentin Vermande
Summary: In this paper, the application of the slime mold Physarum polycephalum in computing tasks, such as shortest path calculation and network design, is studied. The dynamics of the slime mold is shown to be effective in constructing efficient networks through computer simulations and theoretical analysis. The optimum solution is characterized by minimizing the combined cost of the network and routing demands.
THEORETICAL COMPUTER SCIENCE
(2022)
Article
Quantum Science & Technology
Mehri Sadat Ebrahimi, Stefano Zippilli, David Vitali
Summary: This article introduces a simple feedback scheme that allows efficient operation of a microwave-quantum-illumination device based on electro-optomechanical systems, even in regimes with excessive dissipation, surpassing the optimal classical illumination protocol with the same transmitted energy.
QUANTUM SCIENCE AND TECHNOLOGY
(2022)
Article
Optics
Najmeh Eshaqi-Sani, Stefano Zippilli, David Vitali
Summary: This article introduces a scheme for nonreciprocal conversion between optical and radio-frequency photons using exclusively optomechanical and electromechanical interactions. The nonreciprocal transmission is obtained through interference of two dissipative transmission pathways established between two intermediate mechanical modes.
Article
Optics
Peter-Maximilian Ney, Simone Notarnicola, Simone Montangero, Giovanna Morigi
Summary: This study investigates the quantum dynamics of a spin chain that simulates Conway's Game of Life. By solving the time-dependent Schrodinger equation for separable initial states, the evolution of quantum correlations across the lattice is analyzed. Examples of evolutions resulting in entangled chains or oscillating entangling structures are reported and characterized using entanglement and network measures. The quantum patterns exhibit structures that differ significantly from classical ones, even in the dynamics of local observables. A notable example is a structure that behaves as a quantum analog of a blinker, but does not have a classical counterpart.
Article
Optics
Tom Schmit, Luigi Giannelli, Anders S. Sorensen, Giovanna Morigi
Summary: This study analyzes the spectral properties of optical photons emitted by solid-state quantum memory and the relationship between stored and retrieved excitations. The results can be applied to optical-to-optical and microwave-to-optical transducers working over a wide range of frequencies. The efficiency of the solid-state quantum transducer depends on the design of the retrieval process in relation to the storage dynamics.
Article
Physics, Fluids & Plasmas
Frederic Folz, Kurt Mehlhorn, Giovanna Morigi
Summary: The study examines the dynamics of a simple adaptive system under noise and periodic damping. Different responses are identified depending on the modulation frequency and noise amplitude. At lower frequencies, the system tends to switch to the path with minimal dissipation.
Article
Materials Science, Multidisciplinary
Piotr Kubala, Piotr Sierant, Giovanna Morigi, Jakub Zakrzewski
Summary: The analysis of the extended Bose-Hubbard model with quasiperiodic infinite-range interactions reveals that a significant fraction of eigenstates becomes localized as the strength of the global interactions is increased. The behavior scales differently depending on the choice of the thermodynamic limit. The system is asymptotically ergodic by scaling the interaction strength to keep the energy extensive, while the MBL regime appears to be stable with superextensive scaling of the energy, which can be experimentally verified in cavity quantum electrodynamics setups through quench spectroscopy.
Article
Materials Science, Multidisciplinary
Jan Kiethe, Lars Timm, Haggai Landa, Dimitri Kalincev, Giovanna Morigi, Tanja E. Mehlstaeubler
Summary: This study investigated the normal-mode spectrum of a trapped ion chain at the symmetry-breaking linear to zigzag transition and at finite temperatures. Although the expected mode softening at the critical point was not observed experimentally, numerical simulations suggest that this is due to the finite temperature of the chain. The study developed an effective analytical model to reproduce the low-frequency spectrum as a function of temperature and close to the transition point, providing insights into the frequency shift of the soft mode and the effect of anharmonic coupling with high-frequency modes.
Article
Optics
Stefano Zippilli, David Vitali
Article
Optics
Giacomo Serafini, Stefano Zippilli, Irene Marzoli
Article
Materials Science, Multidisciplinary
Kuldeep Suthar, Rebecca Kraus, Hrushikesh Sable, Dilip Angom, Giovanna Morigi, Jakub Zakrzewski
Article
Optics
Aleksei Konovalov, Giovanna Morigi
Article
Optics
Wenlin Li, Paolo Piergentili, Jie Li, Stefano Zippilli, Riccardo Natali, Nicola Malossi, Giovanni Di Giuseppe, David Vitali
