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We study the effect of volumetric constraints on the structure and electronic transport properties of distilled water in a nanopore with embedded electrodes. Combining classical molecular dynamics simulations with quantum scattering theory,…

软凝聚态物质 · 物理学 2014-01-30 P. Boynton , M. Di Ventra

One of the most important challenges of contemporary physics is to find experimental signatures of quantum gravity. It is expected that quantum gravitational effects lead to proton decay but on time scales way beyond what is of any…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Ulf H. Danielsson

Electron-hole excitation theory is used to unveil the role of nuclear quantum effects on the X-ray absorption spectral signatures of water, whose structure is computed via path-integral molecular dynamics with the MB-pol intermolecular…

化学物理 · 物理学 2018-09-30 Zhaoru Sun , Lixin Zheng , Mohan Chen , Michael L. Klein , Francesco Paesani , Xifan Wu

Quantum behavior of superconducting nanowires may essentially depend on the employed experimental setup. Here we investigate a setup that enables passing equilibrium supercurrent across an arbitrary segment of the wire without restricting…

介观与纳米尺度物理 · 物理学 2019-08-07 Alexey Radkevich , Andrew G. Semenov , Andrei D. Zaikin

We present recent work on using astronomical observations of neutron stars to reveal unique insights into nuclear matter that cannot be obtained from laboratories on Earth. First, we discuss our measurement of the rapid cooling of the…

高能物理 - 唯象学 · 物理学 2013-03-18 Wynn C. G. Ho , Nils Andersson , Cristobal M. Espinoza , Kostas Glampedakis , Brynmor Haskell , Craig O. Heinke

Nanoconfinement can drastically change the behavior of liquids, puzzling us with counterintuitive properties. Moreover, it is relevant in applications, including decontamination and crystallization control. It still lacks a systematic…

软凝聚态物质 · 物理学 2022-07-01 Fabio Leoni , Carles Calero , Giancarlo Franzese

Ionic Coulomb blockade is one of the mesoscopic effects in ion transport revealing the quantized nature of ionic charges, which is of crucial importance to our understanding of the sub-continuum transport in nanofluidics and the mechanism…

介观与纳米尺度物理 · 物理学 2020-12-29 Fanfan Chen , Zonglin Gu , Chunxiao Zhao , Yuang Chen , Xiaowei Jiang , Zhi He , Yuxian Lu , Ruhong Zhou , Jiandong Feng

The role of quantum tunneling effect in the electron accretion current onto a negatively charged grain immersed in isotropic plasma is analyzed, within the quasiclassic approximation, for different plasma electron distribution functions,…

等离子体物理 · 物理学 2011-11-30 Yuriy Tyshetskiy , Sergey Vladimirov

Experiments in bulk water confirm the existence of two local arrangements of water molecules with different densities, but, because of inevitable freezing at low temperature $T$, can not ascertain whether the two arrangements separate in…

We study two kinds of Dirac sea effects on the $^1S_0$ pairing gap in nuclear matter based on the relativistic Hartree approximation to quantum hadrodynamics and the Gor'kov formalism. We show that the vacuum fluctuation effect on the…

核理论 · 物理学 2008-11-26 Masayuki Matsuzaki

We analyze theoretically the quantization of conductance occurring with cold bosonic atoms trapped in two reservoirs connected by a constriction with an attractive gate potential. We focus on temperatures slightly above the condensation…

量子气体 · 物理学 2016-08-24 D. J. Papoular , L. P. Pitaevskii , S. Stringari

We analyze the effect of color superconductivity in the transition from hot hadron matter to quark matter in the presence of a gas of trapped electron neutrinos. To describe strongly interacting matter we adopt a two-phase picture in which…

高能天体物理现象 · 物理学 2014-02-24 Taiza A. S. do Carmo , Germán Lugones

We revisit the long-standing question of whether water molecules dissociate on the Ru(0001) surface through nanosecond-scale path-integral molecular dynamics simulations on a sizable supercell. This is made possible through the development…

We study thermoelectric effects in superconducting nanobridges and demonstrate that the magnitude of these effects can be comparable or even larger than that for a macroscopic superconducting circuit. The reason is related to a possibility…

超导电性 · 物理学 2009-11-11 V. L. Gurevich , V. I. Kozub , A. L. Shelankov

To facilitate the transition of quantum effects from the controlled laboratory environment to practical real-world applications, there is a pressing need for scalable platforms. One promising strategy involves integrating thermal vapors…

原子物理 · 物理学 2024-01-18 Hadiseh Alaeian , Artur Skljarow , Stefan Scheel , Tilman Pfau , Robert Löw

Molecular dynamics simulations are carried out to explore the dynamical crossover phenomenon in strongly confined and mildly supercooled water in graphene oxide nanopores. In contrast to studies where confinement is used to study the…

软凝聚态物质 · 物理学 2020-03-09 Rajasekaran M , K. Ganapathy Ayappa

A general density-matrix formulation of quantum-transport phenomena in semiconductor nanostructures is presented. More specifically, contrary to the conventional single-particle correlation expansion, we shall investigate separately the…

材料科学 · 物理学 2009-11-11 Rita Claudia Iotti , Emanuele Ciancio , Fausto Rossi

Specific molecular interactions underlie unexpected and useful phenomena in nanofluidic systems, but require descriptions that go beyond traditional macroscopic hydrodynamics. In this letter, we demonstrate how equilibrium molecular…

介观与纳米尺度物理 · 物理学 2023-06-07 Phillip Helms , Anthony R. Poggioli , David T. Limmer

Ionic Seebeck effect of electrolytes has shown promising applications in harvesting energy from low-grade waste-heat sources with small temperature difference from the environment, which can power sensors and Internet-of-Things devices.…

软凝聚态物质 · 物理学 2022-02-03 Xin Qian , Te-Huan Liu , Ronggui Yang

For coherent electron spins, hyperfine coupling to nuclei in the host material can either be a dominant source of unwanted spin decoherence or, if controlled effectively, a resource allowing storage and retrieval of quantum information. To…

介观与纳米尺度物理 · 物理学 2013-05-28 H. O. H. Churchill , A. J. Bestwick , J. W. Harlow , F. Kuemmeth , D. Marcos , C. H. Stwertka , S. K. Watson , C. M. Marcus