Article
Multidisciplinary Sciences
Yair Margalit, Yu-Kun Lu, Furkan Cagri Top, Wolfgang Ketterle
Summary: The phenomenon of Pauli blocking of light scattering in a dense quantum-degenerate Fermi gas of ultracold lithium atoms has been observed, with a 37% suppression of light scattered even at large angles at low temperatures compared to higher temperatures.
Article
Optics
Kali E. Wilson, Alexander Guttridge, Jack Segal, Simon L. Cornish
Summary: Production of quantum degenerate Bose-Bose mixtures of Cs and Yb with both attractive and repulsive interspecies interactions is reported. Dual-species evaporation in a bichromatic optical dipole trap allows for efficient sympathetic cooling of Cs. For Cs + Yb-174, the attractive interspecies interaction is stabilized by repulsive intraspecies interactions, while for Cs + Yb-170(b), the repulsive interspecies interaction can overwhelm the intraspecies interactions, resulting in partial miscibility of the mixture.
Article
Physics, Multidisciplinary
Joseph C. Smith, D. Baillie, P. B. Blakie
Summary: Quantum droplets can emerge in bosonic binary magnetic gases through the interplay of short- and long-ranged interactions, as well as quantum fluctuations. An extended mean field theory was developed to predict the equilibrium and dynamical properties of these droplets, revealing miscible and immiscible droplet states. The study also found that a single-component self-bound droplet can bind another magnetic component due to interspecies dipole-dipole interactions, with implications for experiments using mixtures of highly magnetic lanthanide atoms.
PHYSICAL REVIEW LETTERS
(2021)
Article
Optics
Lasse Gresista, Torsten Zache, Juergen Berges
Summary: We performed a dynamical finite-size scaling analysis of a nonequilibrium Bose gas confined in the transverse plane. Our results suggest that some aspects of the dynamical universal behavior in anisotropic systems can be classified in terms of fractional spatial dimensions.
Article
Physics, Multidisciplinary
Minh-Binh Tran, Yves Pomeau
Summary: A new model describing the behavior of a Bose gas at finite temperatures is derived, incorporating a Gross-Pitaevskii equation for the condensate wave function and a quantum Boltzmann equation for excitations. The model is applicable over a wide range of temperatures and converges to the standard ZNG model when approaching the Bose-Einstein condensate transition temperature.
EUROPEAN PHYSICAL JOURNAL PLUS
(2021)
Article
Optics
Yunfei Wang, Yuqing Li, Jizhou Wu, Wenliang Liu, Jiazhong Hu, Jie Ma, Liantuan Xiao, Suotang Jia
Summary: The study focuses on the Bose-Einstein condensation of Cs-133 atoms and a hybrid evaporative cooling method combining magnetically tunable evaporation with optical evaporation. The experimental results are in excellent agreement with the equation model for evaporative cooling.
Article
Optics
Yan-Peng Bai, Jing-Lun Li, Gao-Ren Wang, Zhong-Bo Chen, Bo-Wen Si, Shu-Lin Cong
Summary: This study presents a simple theoretical model that describes the suppressing reactivity of an ultracold Fermi molecular gas in a degenerate regime using the statistical potential. The model successfully reproduces the experimentally observed suppression of the chemical reaction rate and intuitively captures the strength of spatial correlation through the statistical potential.
Article
Materials Science, Multidisciplinary
Shuo Liu, Ming-Rui Li, Shi-Xin Zhang, Shao-Kai Jian, Hong Yao
Summary: This Letter investigates the effect of quantum noise on measurement-induced phase transitions (MIPT), and reveals that quantum noise can lead to the emergence of the area law entanglement and a novel q-1/3 power-law scaling behavior under certain measurement rates. By analyzing the relationship between the quantum model and a classical statistical model, it is shown that the area law entanglement is the consequence of noise-driven symmetry-breaking field, and the q-1/3 scaling can be understood as the result of Kardar-Parisi-Zhang fluctuations.
Article
Quantum Science & Technology
Pengfei Zhang, Chunxiao Liu, Shao-Kai Jian, Xiao Chen
Summary: The study investigates the impact of long-range hopping on non-Hermitian free-fermion systems, revealing the emergence of novel steady states characterized by their entanglement properties. Two critical phases are observed when α > 0.5, including a logarithmic phase and a fractal phase with distinct subsystem entanglement scaling.
Article
Optics
K. Mukherjee, M. Nilsson Tengstrand, T. Arnone Cardinale, S. M. Reimann
Summary: In this study, we theoretically investigate a supersolid structure composed of stacked, disk-shaped superfluid droplets connected via a dilute superfluid in an antidipolar condensate. We determine the phase diagram for varying particle number and scattering length, identifying different regions of a regular dipolar superfluid, supersolid stacks, and isolated stacked disk-shaped droplets that can be realized experimentally. We also study the collective Bogoliubov excitation spectrum across the superfluid-supersolid phase transition and investigate the dynamical generation of supersolid stacks.
Article
Optics
A. D. Garcia-Orozco, L. Madeira, M. A. Moreno-Armijos, A. R. Fritsch, P. E. S. Tavares, P. C. M. Castilho, A. Cidrim, G. Roati, V. S. Bagnato
Summary: We studied the emergence of universal scaling in the time-evolving momentum distribution of a harmonically trapped three-dimensional Bose-Einstein condensate, which was parametrically driven to a turbulent state. We found that the out-of-equilibrium dynamics post excitation can be described by a single function due to nearby nonthermal fixed points. The observed behavior connects the dynamics of a quantum turbulent state to several far-from-equilibrium phenomena.
Article
Physics, Multidisciplinary
Isabelle Bouchoule, Jerome Dubail, Lea Dubois, Dimitri M. Gangardt
Summary: Motivated by recent experiments, this study investigates the Lieb-Liniger gas initially prepared in an out-of-equilibrium state that is Gaussian in terms of the phonons. The gas relaxes to a stationary state at very long times whose phonon population is different from the initial one. Using the Bethe-ansatz mapping and bosonization techniques, the stationary state of the gas after relaxation is characterized and its phonon population distribution is computed. The results are applied to the case of an excited coherent state for a single phonon mode and compared to exact results obtained in the hard-core limit.
PHYSICAL REVIEW LETTERS
(2023)
Article
Optics
M. Beau, A. del Campo, D. J. Frantzeskakis, T. P. Horikis, P. G. Kevrekidis
Summary: This article investigates the interplay of repulsive short-range and same-sign long-range interactions in the dynamics of dark solitons in a trapped one-dimensional Bose gas. The study shows that single- and multiple-dark-soliton states can exist and are generically robust in the presence of long-range interactions. The frequencies of the soliton oscillations are significantly upshifted as the strength of the long-range interactions is increased.
Article
Optics
Dong-Xu Chen, Yunlong Wang, Feiran Wang, Jun-Long Zhao, Chui-Ping Yang
Summary: High-dimensional quantum systems have advantages over low-dimensional ones, but unitary transformations on quantum states become technically infeasible as the dimensionality increases. Photonic orbital angular momentum (OAM) provides a natural carrier to encode information in high-dimensional spaces. This work proposes an efficient scheme to realize arbitrary unitary transformations on the path-OAM coupled quantum states by combining the path and OAM degrees of freedom of a single photon. It reduces the number of required interferometers while maintaining the symmetric structure, and can be used to manipulate the photonic OAM states.
LASER & PHOTONICS REVIEWS
(2023)
Article
Physics, Multidisciplinary
S. Musolino, H. Kurkjian, M. Van Regemortel, M. Wouters, S. J. J. M. F. Kokkelmans, V. E. Colussi
Summary: In a unitary regime atomic Bose-Einstein condensate that has been rapidly cooled, we predict the sequential formation of a significant fraction of condensed pairs and triples. At short distances, the condensed pairs and triples exhibit two-body and Efimovian characteristics, respectively. As the system evolves, their size becomes comparable to the interparticle distance, leading to significant many-body effects. The structure of the condensed triples depends on the size of the Efimov states compared to density scales, and unexpectedly, we find universal condensed triples when these scales are well separated. Our findings provide a new framework for understanding dynamics in the unitary regime as the Bose-Einstein condensation of few-body composites.
PHYSICAL REVIEW LETTERS
(2022)
Article
Chemistry, Physical
Egor Evlyukhin, Eunja Kim, David Goldberger, Petrika Cifligu, Sarah Schyck, Philippe F. Weck, Michael Pravica
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2018)
Article
Chemistry, Physical
David Goldberger, Changyong Park, Egor Evlyukhin, Petrika Cifligu, Michael Pravica
JOURNAL OF PHYSICAL CHEMISTRY A
(2018)
Article
Optics
David Goldberger, Jonathan Barolak, Charles G. Durfee, Daniel E. Adams
Article
Optics
David Goldberger, David Schmidt, Jonathan Barolak, Bojana Ivanic, Charles G. Durfee, Daniel E. Adams
Summary: In this study, the spatial-spectral characteristics of pulse-beams are demonstrated using multiplexed broadband ptychography, without the need for spectral filters, interferometers, or reference pulses.
Article
Microscopy
Jonathan Barolak, David Goldberger, Jeff Squier, Yves Bellouard, Charles Durfee, Daniel Adams
Summary: This study introduces the experimental demonstration of wavelength-multiplexing in single-shot ptychography, reconstructing complex transmission profiles simultaneously for different probing wavelengths. It discusses the advantages of a more general approach to detector segmentation and presents a minimization technique to correct uncertainties in a priori information. Additionally, it introduces a novel probe constraint without the need for an external reference, enabling various imaging technologies and applications.
Article
Optics
David Goldberger, Jonathan Barolak, Charles S. Bevis, Bojana Ivanic, David Schmidt, Yuhao Lei, Peter Kazansky, Giulia F. Mancini, Charles G. Durfee, Daniel E. Adams
Summary: This paper presents a reference-free, full-field, single-shot spatiospectral measurement technique called broadband single-shot ptychography (BBSSP). BBSSP provides the complex wavefront for each spectral and polarization component in an ultrafast pulse-beam and should be applicable across the electromagnetic spectrum. BBSSP will dramatically improve the application and mitigation of spatiospectral pulse-beam structure.
Article
Materials Science, Multidisciplinary
Egor Evlyukhin, Eunja Kim, Petrika Cifligu, David Goldberger, Sarah Schyck, Blake Harris, Sindi Torres, George R. Rossman, Michael Pravica
JOURNAL OF MATERIALS CHEMISTRY C
(2018)
Article
Chemistry, Physical
David Goldberger, Egor Evlyukhin, Petrika Cifligu, Yonggang Wang, Michael Pravica
JOURNAL OF PHYSICAL CHEMISTRY A
(2017)