Article
Chemistry, Physical
Madalynn Marshall, Fei Wang, Tomasz Klimczuk, Ranuri S. Dissanayaka Mudiyanselage, Martha Greenblatt, David Walker, Weiwei Xie
Summary: This study reports the synthesis and structural determination of a magnetic material, Eu2Mg3Bi4, which stabilizes in a buckled honeycomb lattice. Competing magnetic phases were observed in metallic Eu2Mg3Bi4. The findings provide valuable insights into the interplay between honeycomb lattice rare-earths and quantum magnets, and the design and control of magnetism.
CHEMISTRY OF MATERIALS
(2022)
Review
Physics, Multidisciplinary
Wei Ruan, Yuanbo Zhang
Summary: This article reviews recent progress on strongly-correlated phenomena in two-dimensional transition metal dichalcogenides, including Mott insulators, quantum spin liquids, and Wigner crystals. It points out that this is a rapidly developing research area with tremendous opportunities for discovering exotic quantum phenomena and exploring their applications for future electronic devices.
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
(2023)
Article
Engineering, Multidisciplinary
Atta ur Rahman, Hazrat Ali, Saeed Haddadi, S. M. Zangi
Summary: In this study, we investigate the effective generation of thermal non-classical correlations in two two-level atoms exposed to a Fock-state cavity with classical decoherence effects. By using Bell non-locality, quantum coherence, and concurrence, we examine the generation maps of non-locality, coherence, and entanglement. The results show that the two initially separable atoms become coherent and entangled within a short time when interacting with the Fock-state cavity. The Fock-state cavity exhibits dominant traits in suppressing classical decoherence effects, but the decoherence effects delay the generation of non-classical correlations.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Optics
Su-jing Liu, Xu-xing Geng, Ming Xue, Gao-xiang Li
Summary: This study investigates the influence of multiphoton effect on the fluorescence spectrum and photon statistics of a bichromatically driven two-level atomic system. Using perturbation theory, the impact of the weaker driving field's multiphoton effect on the system and spontaneous emission is revealed. The physical origin of the multiphoton process affecting the fluorescence spectral asymmetry is fully investigated, along with the suppression condition of the central peak in the central band. The photon statistical properties of the system are examined, particularly the asymmetry of the two-photon correlation signal affected by the multiphoton process.
Article
Optics
Elnaz Darsheshdar, Mathilde Hugbart, Romain Bachelard, Celso Jorge Villas-Boas
Summary: The study investigates two-color photon correlations in the light emitted by two strongly driven, strongly interacting two-level emitters, interpreting the correlations through the collective dressed states picture to describe both bunching and antibunching. Strong interactions lift the degeneracy of energy differences between different states, resulting in a temporal breaking of symmetry for the correlations. Virtual processes involving pairs of photons yield nonclassical correlations when the sum of their energies matches interaction-induced sidebands in the emitted spectrum.
Article
Physics, Multidisciplinary
Michelle O. Araujo, Lucas S. Marinho, Daniel Felinto
Summary: We experimentally verify nonclassical correlations in an unfiltered spontaneous four wave mixing process in a group of cold two-level atoms, supporting theoretical predictions of a violation of the Cauchy-Schwarz inequality in the system. Quantum correlations are observed in nanosecond timescale interference and prevail over noise background from the same optical transition. These correlations are sensitive to phase disturbances in atomic excitation while being robust to variations in atomic number and light intensity.
PHYSICAL REVIEW LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Shouryya Ray, Lukas Janssen
Summary: The study reveals the existence of an extended region of coexisting nematic and antiferromagnetic orders on the Bernal-stacked honeycomb bilayer. The quantum phase transition from nematic to coexistent nematic-antiferromagnetic orders is found to be continuous, characterized by emergent Lorentz symmetry. In contrast, the coexistence-to-antiferromagnetic transition is weakly first order due to the absence of continuous spatial rotational symmetry on the honeycomb bilayer.
Article
Materials Science, Multidisciplinary
O. Song-Jin, Yong-Hwan Kim, Ok-Gyong Pak, Kum-Hyok Jong, Chol-Won Ri, Hak-Chol Pak
Summary: Researchers investigated doped graphene near the van Hove singularity and discovered rich ground-state phase diagrams with various superconducting and spin/charge-density wave phases. Surprisingly, they found that weak nearest-neighbor exchange coupling strongly suppresses chiral d-wave superconductivity in this system.
Review
Chemistry, Multidisciplinary
Shan Liu, Gui Yu
Summary: The twisted bilayer graphene vdW moire superlattices exhibit exotic properties such as correlated insulating states and unconventional superconductivity, making them promising for electronic and quantum computation device manufacturing. This review discusses the fabrication, characterization, energy band engineering, and strong electronic correlation properties of vdW moire superlattices, highlighting the importance of a comprehensive understanding of these structures.
Article
Physics, Fluids & Plasmas
Andre Nachbin
Summary: In this study, we numerically investigate the impact of isolation on previously correlated walking droplets. The results show that the droplets are coupled through wave-mediated interactions and exhibit statistically indistinguishable behavior even after isolation.
PHYSICAL REVIEW FLUIDS
(2022)
Article
Physics, Fluids & Plasmas
Angel L. Corps, Armando Relano
Summary: This study examines the spectral statistics of quantum systems with finite Hilbert spaces and reveals that the unfolding procedure may disrupt the correlations between eigenlevels. An analytic expression for the power spectrum of the delta(n) statistic for a model with intermediate statistics is provided, and the impact of unfolding procedure on the results is demonstrated both numerically and analytically. Additionally, a simple model is proposed to explain this phenomenon and tested on various models through numerical simulations.
Article
Mathematics, Applied
Wenjie Li, Yanyi Nie, Wenyao Li, Xiaolong Chen, Sheng Su, Wei Wang
Summary: This paper proposes a competing spread model for two epidemics on higher-order networks and analyzesthe factors that affect the spread process. The experimental results show that the difference in 1-simplex infection rates between the two epidemics and the increase in 2-simplex infection rates have significant impacts on the spread process.
Article
Physics, Multidisciplinary
Khady Diagne, Thomas M. Bury, Marc W. Deyell, Zachary Laksman, Alvin Shrier, Gil Bub, Leon Glass
Summary: We studied the dynamics generated by two periodic sources with different frequencies in excitable cardiac tissue culture using optogenetic techniques. The observed rhythms showed unexpected regularities related to classic results in number theory, which can be modeled and analyzed using cellular automata. These findings have potential applications in identifying cardiac arrhythmias caused by competing pacemakers in humans.
PHYSICAL REVIEW LETTERS
(2023)
Article
Optics
Sandra M. Jose, Komal Sah, Rejish Nath
Summary: In this article, we analyze the formation of transient patterns and spin-spin correlations in quasi-two-dimensional spin-1 homogeneous Bose-Einstein condensates under parametric driving of s-wave scattering lengths. The dynamics for an initial ferromagnetic phase is the same as that of a scalar condensate, while intriguing dynamics emerge for an initial polar state. We show that competition exists between density patterns and spin-mixing dynamics, leading to a gas of polar core vortices and antivortices of different spin textures.
Article
Quantum Science & Technology
Cai-Peng Shen, Xing-Liang Dong, Jia-Qiang Chen, Yi-Fan Qiao, Peng-Bo Li
Summary: The study investigates the phonon transport properties and interactions in a 1D phononic waveguide with embedded SiV centers, demonstrating strong phonon-phonon interactions and the formation of phononic bound states. Phonon-phonon interactions are found to be stronger for slower phonon velocities, promising for various all-phonon quantum devices.
ADVANCED QUANTUM TECHNOLOGIES
(2021)
