Results 61 to 70 of about 20,882 (199)

Combining p‐tau217 and digital cognitive testing to predict cognitive decline

open access: yesAlzheimer's &Dementia, Volume 22, Issue 4, April 2026.
Abstract INTRODUCTION We investigated whether a multi‐day learning curve (MDLC), derived from remote digital cognitive assessments over 1 week, adds prognostic value to plasma phosphorylated tau at threonine 217 (p‐tau217) for predicting cognitive decline in cognitively unimpaired (CU) older adults. METHODS A total of 183 CU participants (mean age 73.3;
Hairin Kim   +16 more
wiley   +1 more source

Finite-momentum superfluidity and phase transitions in a p-wave resonant Bose gas

open access: yes, 2011
We study a degenerate two-species gas of bosonic atoms interacting through a p-wave Feshbach resonance as for example realized in a Rb85-Rb87 mixture.
Choi, Sungsoo, Radzihovsky, Leo
core   +1 more source

Fast Simulation of Wide‐Angle Coherent Diffractive Imaging

open access: yesLaser &Photonics Reviews, Volume 20, Issue 7, 6 April 2026.
The propagation multi‐slice Fourier transform method is introduced as an accurate and efficient approach for describing light scattering for arbitrarily shaped objects. Its exceptional suitability for simulating coherent diffractive imaging of nanoparticles in the XUV and soft X‐ray range is demonstrated.
Paul Tuemmler   +3 more
wiley   +1 more source

Semiclassical Theory of Bardeen-Cooper-Schrieffer Pairing-Gap Fluctuations

open access: yes, 2008
Superfluidity and superconductivity are genuine many-body manifestations of quantum coherence. For finite-size systems the associated pairing gap fluctuates as a function of size or shape.
D. Brink   +7 more
core   +2 more sources

Otto Stern—An Involuntary Convert to Quantum Theory

open access: yesNatural Sciences, Volume 6, Issue 2, April 2026.
Otto Stern (1888–1969) at work in his Hamburg laboratory (circa 1930). ABSTRACT The bulk of experiments and observations that lined the path to quantum mechanics amounted to a backlog of data in need of explanation. A notable exception was the Stern–Gerlach experiment (SGE) designed to test the predictions of the old quantum theory as embodied by the ...
Bretislav Friedrich
wiley   +1 more source

Landau versus Spin Superfluidity in Spinor Bose-Einstein Condensates

open access: yes, 2013
We consider a spin-1/2 Bose-Einstein condensate prepared initially in a single spin projection. The two channels of excitations existing in such a system (namely density and spin waves) are discussed and we show how pure spin waves can be excited in the ...
Flayac, H.   +3 more
core   +1 more source

Superfluid spin transport in magnetically ordered solids

open access: yes, 2020
The paper reviews the theory of the long-distance spin superfluid transport in solid ferro- and antiferromagnets based on the analysis of the topology, the Landau criterion, and phase slips.
Sonin, E. B.
core   +1 more source

Electron–hole superfluidity in strained Si/Ge type II heterojunctions

open access: yesnpj Quantum Materials, 2021
Excitons are promising candidates for generating superfluidity and Bose–Einstein condensation (BEC) in solid-state devices, but an enabling material platform with in-built band structure advantages and scaling compatibility with industrial semiconductor ...
Sara Conti   +7 more
doaj   +1 more source

Merging van der Waals Materials and Optical Metasurfaces for Cavity Quantum Electrodynamics

open access: yesNanophotonics, Volume 15, Issue 5, 16 March 2026.
Flat optical metasurfaces supporting quasi‐bound states in the continuum (qBIC) enable cavity‐like, high‐Q resonances in ultrathin nanostructures. This perspective explores the emergence of cavity quantum electrodynamics in qBIC metasurfaces, specifically those made from ultrathin van der Waals nanostructures, where cavities and emitters are seamlessly
Luca Sortino   +2 more
wiley   +1 more source

Meissner Effect and Nonreciprocal Charge Transport in Non‐Topological 1T‐CrTe2/FeTe Heterostructures

open access: yesAdvanced Materials, Volume 38, Issue 14, 6 March 2026.
This work demonstrates interface‐induced superconductivity (Tc ∼12 K) with a robust Meissner effect and pronounced nonreciprocal transport in epitaxial 1T‐CrTe2/FeTe heterostructures, where 1T‐CrTe2 is a 2D ferromagnet, and FeTe is an antiferromagnetic metal.
Zi‐Jie Yan   +13 more
wiley   +1 more source

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