Results 61 to 70 of about 77,423 (235)

Supercurrents and Tunneling in Massive Many‐Vortex Necklaces and Star‐Lattices

Annalen der Physik, Volume 537, Issue 12, December 2025.
It is numerically shown how massive many‐vortex systems, in a mixture of Bose–Einstein condensates, can host the bosonic tunneling of the infilling component in an almost‐periodic way when the vortices are organized in necklaces or star‐lattices. The purpose is to explore the conditions for the onset of Josephson supercurrents in rotating many‐vortex ...
Alice Bellettini, Vittorio Penna
wiley   +1 more source

Dynamic structure factor of ultracold Bose and Fermi gases in optical lattices [PDF]

, 2004
We investigate the dynamic structure factor of atomic Bose and Fermi gases in one-dimensional optical lattices at zero temperature. The focus is on the generic behaviour of S(k,omega) as function of filling and interaction strength with the aim of ...
Burnett, K., Roth, R.
core   +2 more sources

Polaritonic quantum matter

Nanophotonics, Volume 14, Issue 23, Page 3723-3760, 02 November 2025.
Abstract Polaritons are quantum mechanical superpositions of photon states with elementary excitations in molecules and solids. The light–matter admixture causes a characteristic frequency‐momentum dispersion shared by all polaritons irrespective of the microscopic nature of material excitations that could entail charge, spin, lattice or orbital ...
D.N. Basov, Ana Asenjo‐Garcia, P. James Schuck, Xiaoyang Zhu, Angel Rubio, Andrea Cavalleri, Milan Delor, Michael M. Fogler, Mengkun Liu   +8 more
wiley   +1 more source

Emergent Fracton Hydrodynamics of Ultracold Atoms in Partially Filled Landau Levels

PRX Quantum
The realization of synthetic gauge fields for charge neutral ultracold atoms and the simulation of quantum Hall physics have witnessed remarkable experimental progress.
Caterina Zerba, Alexander Seidel, Frank Pollmann, Michael Knap   +3 more
doaj   +1 more source

Parametric excitation and squeezing in a many-body spinor condensate

Nature Communications, 2016
Ultracold atomic gases with collisional interactions allow the exploration of quantum many-body physics. Here, the authors vary over time the contributions to the interaction energy to coherently control the spin state of an atomic Bose gas, thereby ...
T. M. Hoang, M. Anquez, B. A. Robbins, X. Y. Yang, B. J. Land, C. D. Hamley, M. S. Chapman   +6 more
doaj   +1 more source

Grüneisen parameters: Origin, identity, and quantum refrigeration

Physical Review Research, 2020
In solid-state physics, the Grüneisen parameter (GP) was first introduced to study the effect of volume change of a crystal lattice on its vibrational frequencies and has since been widely used to investigate the characteristic energy scales of systems ...
Yi-Cong Yu, Shizhong Zhang, Xi-Wen Guan
doaj   +1 more source

The short-range three-body phase and other issues impacting the observation of Efimov physics in ultracold quantum gases [PDF]

, 2007
We discuss several issues important for experimentally observing Efimov physics in ultracold quantum gases. By numerically solving the three-boson Schrödinger equation over a broad range of scattering lengths and energies, and by including model ...
J. D’Incao, C. Greene, B. Esry
semanticscholar   +1 more source

Illuminating Quantum Phenomena in 2D Materials: The Power of Optical Spectroscopy

Advanced Optical Materials, Volume 13, Issue 31, November 5, 2025.
Atomically thin 2D materials host quantum tunnelling, plasmonic and excitonic phenomena driven by reduced dimensionality and strong many‐body interactions. This review links these effects to state‐of‐the‐art optical probes—NSOM, pump–probe, CARS, TRR, and optical frequency comb spectroscopy—highlighting how their ultrahigh spatial–temporal resolution ...
Yuhui Zhou, Jiaru Zhang, Guanghui Ren, Bao Yue Zhang, Jian Zhen Ou   +4 more
wiley   +1 more source

Tracking Evaporative Cooling of a Mesoscopic Atomic Quantum Gas in Real Time

Physical Review X, 2021
The fluctuations in thermodynamic and transport properties in many-body systems gain importance as the number of constituent particles is reduced. Ultracold atomic gases provide a clean setting for the study of mesoscopic systems; however, the detection ...
Johannes Zeiher, Julian Wolf, Joshua A. Isaacs, Jonathan Kohler, Dan M. Stamper-Kurn   +4 more
doaj   +1 more source

Non‐Hermitian Topological Lattice Photonics: An Analytic Perspective

Advanced Photonics Research, Volume 6, Issue 11, November 2025.
This review establishes exact analytical solutions for non‐Hermitian Hatano–Nelson, Su–Schrieffer–Heeger, and generalized Rice–Mele models. We demonstrate non‐Hermitian skin effects via point‐gap topology, hybrid skin‐topological edge states in 2D lattices, and spin‐polarized boundary modes governed by dual bulk‐boundary correspondence.
Shihua Chen, Abdul Basit, Lingfang Li, Chong Hou, Yang Ruan, Yating Wei, Zhenhua Ni   +6 more
wiley   +1 more source