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Steady-state currents generically occur both in systems with continuous translation invariance and in nonequilibrium settings with particle drift. In either case, thermal fluctuations advected by the current act as a source of noise for slower hydrodynamic modes. This noise is unconventional, since it is highly correlated along spacetime rays. We argue that, in quasi-one-dimensional geometries, the correlated noise from ballistic modes generically gives rise to anomalous full counting statistics (FCS) for diffusively spreading charges. We present numerical evidence for anomalous FCS in two settings: (1) a two-component continuum fluid and (2) the totally asymmetric exclusion process initialized in a nonequilibrium state.
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http://dx.doi.org/10.1103/PhysRevE.111.015410 | DOI Listing |
Ear Hear
September 2025
National Institute for Health and Care Research (NIHR) Nottingham Biomedical Research Centre, Nottingham, United Kingdom.
Objectives: In recent years, there has been a profound increase in the use of remote online communication as a supplement to, and in many cases a replacement for, in-person interactions. While online communication tools hold potential to improve accessibility, previous studies have suggested that increased reliance on remote communication poses additional challenges for people with hearing loss, including those with a cochlear implant (CI). This study aimed to investigate the preferences and speech-reception performance of adults with a CI during online communication.
View Article and Find Full Text PDFJ Phys Condens Matter
September 2025
Physics, Birla Institute of Technology and Science - Pilani Campus, Department of Physics, Birla Institute of Technology and Science, Pilani, Pilani Campus, Vidya Vihar, Pilani, RJ, 333031, INDIA.
We investigate the transport properties of a two-dimensional Su-Schrieffer-Heeger (2D SSH) model in the quantum Hall regime using non-equilibrium Green's function formalism (NEGF). The device Hamiltonian, where the 2D SSH model serves as the channel, is constructed using a nearest-neighbor tight-binding model. The effect of an external perpendicular magnetic field is incorporated into the contacts via Peierls substitution.
View Article and Find Full Text PDFBackground: The relative importance of influenza transmission via inhalation (airborne), direct deposition (spray), and contact (touch) remains poorly understood. We implemented a controlled human influenza virus infection transmission trial to study transmission pathways.
Methods: We established a quarantine hotel with individual rooms for participants and recruited healthy Recipients for two-week cohort stays.
Nat Commun
July 2025
Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, Heidelberg, Germany.
Strong coupling between excitons and confined modes of light presents a promising pathway to tunable and enhanced energy transport in organic materials. By forming hybrid light-matter quasiparticles, exciton-polaritons, electronic excitations can traverse long distances at high velocities through ballistic flow. However, transport behavior of exciton-polaritons varies strongly across experiments, spanning both diffusive and ballistic transport regimes.
View Article and Find Full Text PDFJ Chem Phys
June 2025
National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 2, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan.
Controlling thermal transport at the nanoscale through phonon engineering remains a significant challenge in thermal management and nanodevice design. Molecular materials present a promising pathway for thermal control owing to their structural flexibility and dynamic behavior encompassing both intra- and intermolecular motions. However, the influence of these dynamics on thermal transport remains poorly understood.
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