Article
Materials Science, Multidisciplinary
Ching-Yu Huang, Jiapei Zhuang, Po-Yao Chang, Daw-Wei Wang
Summary: The topological properties of spin polarized Rydberg-dressed fermionic atoms loaded in a bilayer optical lattice are systematically investigated. Different types of topological superfluid states are identified through tuning the Rydberg coupling strength and the interlayer tunneling amplitude.
Article
Physics, Multidisciplinary
Qing-Dong Jiang, A. Balatsky
Summary: In this study, the properties of chiral superfluid thin films coating a curved surface are explored. The emergence of a geometric gauge field due to the vector nature of the order parameter leads to observable effects such as anomalous vortex-geometric interaction and curvature-induced mass and spin supercurrents. The theory is applied to well-known phases of chiral superfluid He-3, and experimentally observable signatures are derived. The interplay between geometry and chiral superfluid order is further discussed, particularly in the cases of flexible geometries where the surface can adapt to compensate for strain.
PHYSICAL REVIEW LETTERS
(2022)
Article
Multidisciplinary Sciences
Korey P. Carter, Katherine M. Shield, Kurt F. Smith, Zachary R. Jones, Jennifer N. Wacker, Leticia Arnedo-Sanchez, Tracy M. Mattox, Liane M. Moreau, Karah E. Knope, Stosh A. Kozimor, Corwin H. Booth, Rebecca J. Abergel
Summary: Transplutonium elements are a group of metals at the edge of the periodic table, with properties that are less predictable due to their scarcity and radioactivity. Studies on the heaviest element einsteinium highlight the need for further exploration of actinide elements, especially those that are scarce and short-lived.
Article
Polymer Science
Annelore Aerts, Sean J. D. Lugger, Johan P. A. Heuts, Rint P. Sijbesma
Summary: A new mechanophore for polyurethane thermoplastic elastomers based on ion-paired complexes is developed, where the incorporation of HEPTS leads to changes in fluorescence emission color. Stretching the solid polymer results in dissociation of HEPTS aggregates and a shift in fluorescence emission color.
MACROMOLECULAR RAPID COMMUNICATIONS
(2021)
Article
Physics, Multidisciplinary
Ohad Lib, Yaron Bromberg
Summary: This Perspective discusses the extent to which the quantum properties of light can be preserved and controlled in complex medium, and their relevance to applications in quantum communication and quantum computing.
Article
Optics
D. Hemmer, E. Montano, B. Q. Baragiola, L. M. Norris, E. Shojaee, I. H. Deutsch, P. S. Jessen
Summary: Squeezing of collective atomic spins has been shown to enhance the sensitivity of atomic clocks and magnetometers significantly below the standard quantum limit, with entanglement generated by either dispersive interaction or state-dependent collisions in a quantum gas. The experiments utilize multilevel atoms to mimic pseudospin-1/2 particles, achieving peak metrological squeezing through quantum backaction from a dispersive quantum non-demolition measurement.
Article
Physics, Applied
Qi Jia, Rui Feng, Bojian Shi, Fangkui Sun, Yanxia Zhang, Hang Li, Xiaoxin Li, Yongyin Cao, Jian Wang, Weiqiang Ding
Summary: This study proposes a deep neural network (DNN)-N-2 method for compensating distorted OAM beams by extracting common features and filtering random distortions. Good agreement between experimental and simulated results is achieved.
APPLIED PHYSICS LETTERS
(2022)
Article
Physics, Multidisciplinary
Lata Kh Joshi, Andreas Elben, Amit Vikram, Benoit Vermersch, Victor Galitski, Peter Zoller
Summary: The statistics of energy eigenvalues are important for understanding many-body quantum chaos, and partial spectral form factors can provide insights into subsystems of many-body systems. We propose a protocol that uses randomized measurements to measure the spectral form factor and partial spectral form factors in quantum many-body spin models.
Article
Materials Science, Multidisciplinary
Patrycja Lydzba, Yicheng Zhang, Marcos Rigol, Lev Vidmar
Summary: The matrix elements of local and nonlocal operators in the single-particle eigenstates of two quantum-chaotic quadratic Hamiltonians exhibit eigenstate thermalization for normalized observables. Specifically, the diagonal matrix elements show vanishing eigenstate-to-eigenstate fluctuations, with their variance proportional to the inverse Hilbert space dimension. The ratio between the variance of diagonal and off-diagonal matrix elements is 2, as predicted by random matrix theory.
Article
Materials Science, Multidisciplinary
Ivan Amelio
Summary: Multidimensional spectroscopy is a popular tool for studying electronic transitions and many-body dynamics in correlated materials. In this study, we use a proposed protocol to extract two-dimensional polaron spectra in a Fermi superfluid with an impurity. Our results show that multidimensional spectroscopy does not provide much additional information, especially in the absence of incoherent processes. Although our calculation is based on ultracold gases, we discuss the implications for exciton polarons in two-dimensional materials.
Article
Polymer Science
Dongdong Li, Lukun Feng, Yin Tang, Caizhen Zhu
Summary: Tassieri et al. have introduced a novel rheological tool called i-Rheo GT that allows the evaluation of materials' linear viscoelastic properties from the relaxation modulus G(t) derived from molecular dynamics simulations. They estimated the polymers' entanglement characteristic time (tau e) from the crossover point of the moduli at intermediate times. The findings suggest that consistent values of tau e can be achieved by discarding the initial values of G(t) governed by bond-oscillation dynamics, and the effectiveness of i-Rheo GT is confirmed by different molecular dynamics simulations.
Article
Physics, Multidisciplinary
Lennart Sobirey, Hauke Biss, Niclas Luick, Markus Bohlen, Henning Moritz, Thomas Lompe
Summary: Understanding the origins of unconventional superconductivity has been a major focus of condensed matter physics. In this study, dilute gases of ultracold fermionic atoms were used to observe the influence of dimensionality on the stability of strongly interacting fermionic superfluids. The researchers found that the superfluid gap follows a universal function, suggesting that there is no inherent difference in the stability of two-and three-dimensional fermionic superfluids.
PHYSICAL REVIEW LETTERS
(2022)
Article
Chemistry, Physical
Jane Y. Y. Chui, Carine Douarche, Harold Auradou, Ruben Juanes
Summary: The study investigates the behavior of bacteria in viscous environments, finding that dense populations of pusher-type bacteria can create superfluidic regimes that reduce the effective viscosity of the suspension. Experimental results show that Escherichia coli (E. coli) can decrease the suspension viscosity to near-zero in different solvent viscosities, and a constitutive model based on the solvent viscosity and bacterial concentration is proposed to capture the onset of the superfluidic regime.
Article
Multidisciplinary Sciences
Chao Duan, Takashi Nishikawa, Deniz Eroglu, Adilson E. Motter
Summary: This study investigates the response of large complex network systems to dynamical perturbations. By analyzing a extensive dataset of real directed networks, the study identifies network structural properties that contribute to nonnormality and reactivity and develops a theory that quantitatively predicts and explains these phenomena. The results have important implications for network design and management.
Article
Physics, Multidisciplinary
Senne Van Loon, Jacques Tempere, Hadrien Kurkjian
Summary: This study investigates the fermionic quasiparticle spectrum in a zero-temperature superfluid Fermi gas and how it is affected by different disintegration processes. In addition to the disintegration by emission of a collective boson, the study also considers disintegration events where three quasiparticles are emitted. It is found that both disintegration processes are described by a t-matrix self-energy and that the quasiparticle spectrum is heavily distorted near the 1 -> 3 disintegration threshold at strong coupling.
