Article
Optics
Yoshihiro Machida, Ippei Danshita, Daisuke Yamamoto, Kenichi Kasamatsu
Summary: In this theoretical study, we investigate the dynamical formation of a self-bound quantum droplet in a two-component Bose-Hubbard system with an external trap potential. The behavior of the droplet can be induced by controlling the trap potential, and can be qualitatively described by an effective Ginzburg-Landau field theory.
Article
Physics, Multidisciplinary
Kangkang Li, Zhaoxin Liang
Summary: In this study, we investigate the effects of dimensional crossover in a three-dimensional Rabi-coupled two-component BEC. We show that the change in dimensionality leads to a transition in quantum fluctuations from three-dimensional to quasi-two-dimensional or one-dimensional behavior, with different effects of Rabi-like and inter- and intra- interaction coupling constants.
COMMUNICATIONS IN THEORETICAL PHYSICS
(2023)
Article
Engineering, Mechanical
Zhi Tan, Huilin Gong, Bo Zhu, Honghua Zhong, Shufang Hu
Summary: We study the construction and dynamics of 2D anisotropic vortex-bright soliton in spinor dipolar Bose-Einstein condensates. The optical lattice and dipole-dipole interaction support stable anisotropic VB solitons even for small values of norm. By adjusting the depth of the lattice, one can control the stability of the solitons. Additionally, the collision dynamics of kicked solitons can lead to a transition from the bright component to the vortex component.
NONLINEAR DYNAMICS
(2023)
Article
Materials Science, Multidisciplinary
Jingjing Jin, Wei Han, Huifang Zhao, Wenyuan Liu
Summary: This study investigates the Moire superlattice structures generated by the interplay between vortex lattice and optical lattice in two-component Bose-Einstein condensates. The possible superlattice patterns under different twist angles are studied, as well as the relative shift of the Moire superlattices in two components of the condensates.
RESULTS IN PHYSICS
(2022)
Article
Chemistry, Physical
Mauro Sellitto
Summary: The phase behavior of a Biroli-Mezard model on a two-dimensional square lattice was studied using Monte Carlo simulations. It was found that a first-order phase transition occurs at high density, leading to the formation of a crystal phase with enantiomorph ground state configurations.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Optics
Matteo Ciardi, Tommaso Macri, Fabio Cinti
Summary: In this paper, we study the finite-temperature properties of a 2D trapped boson system in a quasiperiodic potential using ab initio path integral Monte Carlo simulations. We find the existence of a robust Bose glass phase, which is not affected by thermal fluctuations up to about half of the critical temperature of the noninteracting system. We characterize local quantities in the trap using zonal estimators and present a phase diagram for a set of parameters relevant to current experiments with quasi-2D optical confinement.
Article
Optics
Pawel Zin, Maciej Pylak, Mariusz Gajda
Summary: We describe a quantum droplet of a Bose-Bose mixture squeezed by an external harmonic force in one spatial direction. We investigate the droplet's profile and chemical potential using both numerical and analytic methods.
Article
Physics, Multidisciplinary
Yan-Fang Jiang, Ai-Xia Zhang, Xiao-Wen Hu, Zi-Fa Yu, Ju-Kui Xue
Summary: This study analytically obtained the critical condition for phase transition of Bose-Einstein condensates with equal-weight Rashba and Dresselhaus spin-orbit coupling in a one-dimensional optical lattice, revealing rich competitive relationships. The change in energy minima and phase transition point by the optical lattice was found to depend on atomic interactions and spin-orbit coupling. The theoretical evidence provided a deep understanding of the competition mechanism between optical lattice and spin-orbit coupling for ground state phase transition.
Article
Physics, Multidisciplinary
Yi-Yin Zheng, Shan-Tong Chen, Zhi-Peng Huang, Shi-Xuan Dai, Bin Liu, Yong-Yao Li, Shu-Rong Wang
Summary: We studied the stability of zero-vorticity and vortex lattice quantum droplets described by a 2D GP equation, finding the stability areas for different numbers of sites and vorticities. The relationship between mu and N for stable LQDs may violate the VK criterion, and two types of vortex LQDs with the same number of sites were found to be degenerate, while zero-vorticity LQDs were not. The offsite-centered LQDs with zero-vorticity and vortex LQDs with S = 1 were heterogeneous.
FRONTIERS OF PHYSICS
(2021)
Article
Physics, Multidisciplinary
Jin-Ge Chen, Yue-Ran Shi, Ren Zhang, Kui-Yi Gao, Wei Zhang
Summary: We investigated the possibility of stabilizing an FFLO state in a two-component Fermi gas trapped in a moving two-dimensional optical lattice, finding that a finite pairing momentum can be induced perpendicular to the moving direction for nearly half filling, leading to a tilt of the total pairing momentum towards the nesting vector for an enhancement of the density of states.
Article
Optics
R. Alhyder, G. M. Bruun
Summary: The properties of a quasiparticle formed by a mobile impurity interacting with a two-dimensional fermionic superfluid are explored. It is found that the energy of the quasiparticle is lowered by superfluid pairing, leading to an increase in its compressibility and making it easier for the impurity to perturb its surroundings. The discontinuous nature of the superfluid-to-normal phase transition in a two-dimensional system results in a rapid increase in the quasiparticle energy around the critical temperature. The magnitude of this increase shows nonmonotonic behavior with a maximum in the crossover region where the spatial extent of the Cooper pairs is comparable to the interparticle spacing. Since the quasiparticle energy can be measured with current experimental techniques, impurities entangled with their environment can serve as useful probes for studying nontrivial thermal and quantum correlations.
Article
Materials Science, Multidisciplinary
C. G. L. Bottcher, F. Nichele, J. Shabani, C. J. Palmstrom, C. M. Marcus
Summary: In this study, we explore the vortex dynamics in a two-dimensional Josephson junction array. We observe that the minima of differential resistance undergo a transition and become local maxima at integer and half-integer flux quanta per plaquette. We also observe differences in the transition behavior between the superconducting and anomalous metal phases. Additionally, we find that the transitions show an overall even-odd pattern of skewing around integer f values, which we attribute to vortex commensuration in the square array.
Article
Quantum Science & Technology
N. Dupont, G. Chatelain, L. Gabardos, M. Arnal, J. Billy, B. Peaudecerf, D. Sugny, D. Guery-Odelin
Summary: This study presents an efficient design of quantum optimal-control protocols for manipulating the motional states of atomic Bose-Einstein condensate in a one-dimensional optical lattice. By varying the lattice position, a wide variety of targets can be reached, including single or multiple quantized momentum states with full control on the relative phase between different momentum components.
Article
Optics
Yabo Li, Dominik Schneble, Tzu-Chieh Wei
Summary: We investigate dynamically coupled one-dimensional Bose-Hubbard models and solve for the wave functions and energies of two-particle eigenstates. Our study reveals the existence of four different continua and three doublon dispersions in the two-particle spectrum of a system with generic interactions. The presence of doublons and their energies depend on the coupling strength between two species of bosons and the interaction strengths. We provide details on the spectrum and properties of two-particle states, and analyze the difference in time evolution under different coupling strengths and the relation between the long-time behavior of the system and the doublon dispersion. These dynamics can be observed in cold atoms and potentially simulated by digital quantum computers.
Review
Chemistry, Multidisciplinary
Ping Man, Lingli Huang, Jiong Zhao, Thuc Hue Ly
Summary: Two-dimensional (2D) ferroics, including ferroelectric, ferromagnetic, and ferroelastic materials, have gained significant attention due to their unique physical properties and potential applications. Recent theoretical predictions have identified various 2D ferroic phases, including multiferroics and newly discovered ferrovalleytronics/ferrotoroidics, even at the atomic scale. These predictions have been experimentally confirmed, and the manipulation of ferroic phases in 2D materials through stacking, doping, and defects has also been demonstrated. The remarkable ferroic ordering in 2D materials holds great promise for high-density memory devices, energy conversion devices, and sensing applications. This comprehensive review explores the recent advances in 2D ferroic phases, focusing on the chemistry and structural origins of these properties, as well as discussing their potential applications in information storage, optoelectronics, and sensing. Furthermore, future pathways for research and development in 2D ferroics are envisioned, aiming to provide a comprehensive understanding of this field and facilitate further exploration of new materials and physical phenomena that will have a significant impact on future functional materials and devices.
Article
Physics, Multidisciplinary
T. Boulier, J. Maslek, M. Bukov, C. Bracamontes, E. Magnan, S. Lellouch, E. Demler, N. Goldman, J. Porto
Article
Instruments & Instrumentation
S. Subhankar, A. Restelli, Y. Wang, S. L. Rolston, J. V. Porto
REVIEW OF SCIENTIFIC INSTRUMENTS
(2019)
Article
Physics, Multidisciplinary
S. Subhankar, Y. Wang, T-C Tsui, S. L. Rolston, J. Porto
Article
Physics, Multidisciplinary
S. Subhankar, P. Bienias, P. Titum, T-C Tsui, Y. Wang, A. V. Gorshkov, S. L. Rolston, J. V. Porto
NEW JOURNAL OF PHYSICS
(2019)
Article
Physics, Multidisciplinary
A. N. Craddock, J. Hannegan, D. P. Ornelas-Huerta, J. D. Siverns, A. J. Hachtel, A. Goldschmidt, J. V. Porto, Q. Quraishi, S. L. Rolston
PHYSICAL REVIEW LETTERS
(2019)
Article
Optics
Bo Xiong, Tao Yang, Yu-Ju Lin, Daw-Wei Wang
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
(2020)
Article
Physics, Multidisciplinary
N-C Chiu, Y. Kawaguchi, S-K Yip, Y-J Lin
NEW JOURNAL OF PHYSICS
(2020)
Article
Optics
D. P. Ornelas-Huerta, A. N. Craddock, E. A. Goldschmidt, A. J. Hachtel, Y. Wang, P. Bienias, A. V. Gorshkov, S. L. Rolston, J. V. Porto
Article
Physics, Multidisciplinary
Przemyslaw Bienias, Michael J. Gullans, Marcin Kalinowski, Alexander N. Craddock, Dalia P. Ornelas-Huerta, S. L. Rolston, J. Porto, Alexey Gorshkov
PHYSICAL REVIEW LETTERS
(2020)
Article
Optics
P. Bienias, S. Subhankar, Y. Wang, T-C Tsui, F. Jendrzejewski, T. Tiecke, G. Juzeliunas, L. Jiang, S. L. Rolston, J. Porto, A. Gorshkov
Article
Optics
Bryan Hemingway, T. G. Akin, Steven Peil, J. Porto
Article
Optics
T-C Tsui, Y. Wang, S. Subhankar, J. Porto, S. L. Rolston
Article
Optics
Kevin Qian, Zachary Eldredge, Wenchao Ge, Guido Pagano, Christopher Monroe, J. Porto, Alexey Gorshkov
Article
Optics
Chiao-Hsuan Wang, M. J. Gullans, J. Porto, William D. Phillips, Jacob M. Taylor
Article
Optics
Chiao-Hsuan Wang, M. J. Gullans, J. V. Porto, William D. Phillips, Jacob M. Taylor