Results 51 to 60 of about 11,702 (140)

Effect of disorder geometry on the critical force in disordered elastic systems

, 2013
We address the effect of disorder geometry on the critical force in disordered elastic systems. We focus on the model system of a long-range elastic line driven in a random landscape.
Démery, Vincent, Lecomte, Vivien, Rosso, Alberto   +2 more
core   +2 more sources

Magnetocardiography combined with machine learning for pulmonary hypertension detection and improved short‐term risk assessment

Interdisciplinary Medicine, EarlyView.
Magnetocardiography (MCG) enables non‐invasive mapping of cardiac magnetic fields. In this study, an MCG‐based machine learning model detects pulmonary hypertension with robust performance. Furthermore, MCG features may improve the accuracy of short‐term risk assessment.
Yuankun Qi, Jiaqi Liang, Kai Ma, Xiaoyu Hu, Yu Zhang, Xiaole Han, Dong Xu, Xu Zhang, Xiaopei Cui, Min Xiang, Hongyu Zhang, Jiancheng Fang   +11 more
wiley   +1 more source

Quantum phase transitions

, 2003
In recent years, quantum phase transitions have attracted the interest of both theorists and experimentalists in condensed matter physics. These transitions, which are accessed at zero temperature by variation of a non-thermal control parameter, can ...
Abanov Ar, Affleck I, Affleck I, Altshuler B L, Anderson P W, Balents L, Belitz D, Belitz D, Belitz D, Belitz D, Binder K, Bitko D, Brezin E, Bulla R, Bulla R, Bulla R, Caprara S, Cardy J L, Cardy J L, Castellani C, Castro-Neto A H, Castro-Neto A H, Chakravarty S, Chakravarty S, Chayes J, Chen K, Coleman P, Cox D L, Dagotto E, Finkelstein A M, Finkelstein A M, Fisher D S, Fisher D S, Fisher M P A, Fisher M P A, Fisher M P A, Fradkin E, Gebhard F, Georges A, Goldenfeld N, Gonzalez-Buxton C, Griffiths R B, Grinstein G, Harris A B, Hertz J A, Hewson A C, Huckestein B, Imry Y, Ivanov D A, Jones B A, Jones B A, Kirkpatrick T R, Kirkpatrick T R, Kivelson S A, Kramer B, Kravchenko S V, Laughlin R B, Lee P A, Leggett A J, Ma S-K, Mason N, Matthias Vojta, Metzner W, Millis A J, Motrunich O, Mott N F, Müller-Hartmann E, Narayanan R, Nozières P, Parcollet O, Pich C, Polkovnikov A, Polkovnikov A, Read N, Rosch A, Sachdev S, Satori K, Senthil T, Senthil T Vojta M Sachdev S, Shiba H, Si Q, Sondhi S L, Tranquada J M, Varma C M, Vojta M, Vojta M, Vojta M, Vojta M, Vojta M Fritz L, von Löhneysen H, Wegner F, Wegner F, Wen X G, Wen X-G, Widom B, Williams G V M, Wilson K G, Wilson K G, Wilson K G, Withoff D, Zhang S-C   +100 more
core   +2 more sources

Breaking the Exponential: Decoherence‐Driven Power‐Law Spontaneous Emission in Waveguide Quantum Electrodynamics

Laser &Photonics Reviews, EarlyView.
Introducing dynamical dephasing into the photon modes of a waveguide causes spontaneous emission to switch from conventional exponential decay to a robust power‐law behavior visible at short times. The power law arises from photon diffusion in a dynamically disordered environment, uncovering a previously unexplored, decoherence‐induced pathway to ...
Stefano Longhi
wiley   +1 more source

Machine learning‐driven advances in carbon‐based quantum dots: Opportunities accompanied by challenges

Responsive Materials, EarlyView.
Machine learning provides a unifying framework to connect structure, fluorescence properties, and applications of carbon‐based quantum dots. This review highlights how data‐driven strategies enable fluorescence regulation, reveal underlying mechanisms, and accelerate the rational design of functional carbon dots.
Liangfeng Chen, Siwei Yang, Xiangqian Cui, Ziheng Liu, Hang Wang, Yongqiang Li, Peng He, Miao Wang, Guqiao Ding   +8 more
wiley   +1 more source

Thermal fluctuations correction to magnetization and specific heat of vortex solids in type II superconductors

, 2001
A systematic calculation of magnetization and specific heat contributions due to fluctuations of vortex lattice in strongly type II superconductors to precision of 1% is presented.
Li, Dingping, Rosenstein, Baruch
core   +1 more source

Do We Really Know Why Carbon Nanotubes Grow?

Small, EarlyView.
The CNT growth mechanism is still debated. We propose a heterogeneous (2D) classical nucleation framework comparing pathways for graphenic patches, caps, and full CNTs. Despite its simplicity, it rationalizes key trends, including the correlation between catalyst particle size and CNT diameter.
Nicola Verziaggi, Matteo Bragagnolo, Niloufar Atashi, Paula Dias, Adelio Mendes, Gonzalo Prieto, Simone Meloni   +6 more
wiley   +1 more source

Critical phenomena in the AdS/CFT duality

, 2010
We review black holes with second-order phase transition in string theory (R-charged black holes and holographic superconductors) and review their static and dynamic critical phenomena.
Albash, Albash, Aprile, Behrndt, Buchel, Buchel, Cai, Cvetic, Cvetic, Franco, Gubser, Gubser, Hartnoll, Hartnoll, Herzog, Herzog, Hohenberg, Horowitz, Iqbal, Jain, Kraus, Maeda, Maeda, Maeda, Maeda, Maeda, Makoto Natsuume, Maldacena, Montull, Natsuume, Natsuume, Witten, Witten   +32 more
core   +1 more source

Ferromagnetic Cobalt Oxide With Structural Distortion and Oxidation State Changes for Hydrogen Sulfide Gas Detection

Small, EarlyView.
High H2S gas sensitivity was improved by electrochemically engineering Co3O4/CoO heterostructures with oxygen vacancies and aligning nanosized particles via magnetic‐field‐assisted deposition. This alignment enhanced gas diffusion and electron transport, reducing base resistance. The resulting sensor exhibited high selectivity and a strong response (Rg/
Shin Joon Kang, Chang Yoon Kim, Min Chan Kim, Sunhyeong Kwon, Joon‐Shik Park, Hyung Mo Jeong   +5 more
wiley   +1 more source

Random manifolds in non-linear resistor networks: Applications to varistors and superconductors

, 2001
We show that current localization in polycrystalline varistors occurs on paths which are, usually, in the universality class of the directed polymer in a random medium.
A Donev, Ahuja R K, Alava M J, Bouchaud E, C E Musolff, Clarke D R, Cormen T H, Middleton A A, P M Duxbury, Porto M, Riedinger R, Roux S, Sahimi M, Seppälä E T, Stinchcombe R B   +14 more
core   +1 more source