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Epithelial tissues are driven out of thermodynamic equilibrium by internally generated forces, causing complex patterns of motion. Even when both the forces and motion are measurable, it is not yet possible to relate the two, because the…

Biological Physics · Physics 2025-11-18 Molly McCord , Jacob Notbohm

We propose a simple nanostructured pinning array geometry where a rich variety of complex vortex shear banding phenomena can be realized. A single row of pinning sites is removed from a square pinning array. Shear banding effects arise when…

Superconductivity · Physics 2015-05-14 C. Reichhardt , C. J. Olson Reichhardt

We present results from extensive simulations of driven vortex lattices interacting with periodic arrays of pinning sites. Changing an applied driving force produces a rich variety of novel dynamical plastic flow phases which are very…

Superconductivity · Physics 2009-10-30 C. Reichhardt , C. J. Olson , Franco Nori

We report the formation of a pinned vortex liquid spanning a very large region of the magnetic field-temperature parameter space in a 5 nm thick amorphous superconducting Re_xZr (x~6) (a-ReZr) thin film, using a combination of…

We demonstrate a novel method of experimentally addressing the pinning energy of an Abrikosov vortex in high-temperature superconducting thin films. The method is based on our previously published theoretical framework considering the…

Superconductivity · Physics 2025-06-30 Elmeri O. Rivasto

We use large-scale parallel simulations to compute the motion of superconducting magnetic vortices during avalanches triggered by small field increases. We find that experimentally observable voltage bursts correspond to pulsing vortex…

Superconductivity · Physics 2015-06-25 C. J. Olson , C. Reichhardt , J. Groth , Stuart B. Field , Franco Nori

We study the phase diagram of the superconducting vortex system in layered high-temperature superconductors in the presence of a magnetic field perpendicular to the layers and of random atomic scale point pinning centers. We consider the…

Superconductivity · Physics 2009-11-11 Chandan Dasgupta , Oriol T. Valls

We propose to couple an on-chip high finesse superconducting cavity to the lateral-motion and spin state of a single electron trapped on the surface of superfluid helium. We estimate the motional coherence times to exceed 15 microseconds,…

Mesoscale and Nanoscale Physics · Physics 2015-03-13 D. I. Schuster , A. Fragner , M. I. Dykman , S. A. Lyon , R. J. Schoelkopf

We study numerically the glass formation and depinning transition of a system of two-dimensional cluster-forming monodisperse particles in presence of pinning disorder. The pairwise interaction potential is nonmonotonic, and is motivated by…

Soft Condensed Matter · Physics 2021-11-10 Wenlong Wang , Rogelio Díaz-Méndez , Mats Wallin , Jack Lidmar , Egor Babaev

Cells and other soft particles are often forced to flow in confined geometries in both laboratory and natural environments, where the elastic deformation induces an additional drag and pressure drop across the particle. In contrast with…

Fluid Dynamics · Physics 2025-07-09 Charles Paul Moore , Hiba Belkadi , Brouna Safi , Gabriel Amselem , Charles N. Baroud

The current-voltage characteristics of a porous superconductor Bi2Sr2Ca2Cu3Ox (Bi2223) have been measured at temperature range from 10 to 90 K. The experimental dependences have been analyzed within the model allowing for pinning by…

Superconductivity · Physics 2015-06-15 K. Yu. Terentyev , D. M. Gokhfeld , S. I. Popkov , K. A. Shaykhutdinov , M. I. Petrov

Superfluid \4he atoms are injected (withdrawn) asymmetrically into (from) a chamber filled with solid \4he. Two in situ capacitance pressure gauges are located at the ends of the solid helium sample at different distances from where the…

Other Condensed Matter · Physics 2015-05-18 Ye. Vekhov , R. B. Hallock

Topological magnetic textures such as vortex cores or skyrmions are key candidates for non-volatile information processing. This exploits the texture movement by current pulses that is typically opposed by pinning. A detailed understanding…

Mesoscale and Nanoscale Physics · Physics 2020-07-01 Christian Holl , Marvin Knol , Marco Pratzer , Jonathan Chico , Imara Lima Fernandes , Samir Lounis , Markus Morgenstern

The geometric theory of vortex tunnelling in superfluid liquids is developed. Geometry rules the tunnelling process in the approximation of an incompressible superfluid, which yields the identity of phase and configuration space in the…

Condensed Matter · Physics 2017-09-27 Uwe R. Fischer

We present the results of magnetization and magneto-transport measurements in the superconducting state of an as-cast Nb$_{75}$Zr$_{25}$ alloy. We also report the careful investigation of the microstructure of our sample at various length…

Superconductivity · Physics 2016-07-20 Jagdish Chandra , Meghmalhar Manekar , V. K. Sharma , Puspen Mondal , Pragya Tiwari , S. B. Roy

Micro droplets are extensively used in chemical, biological, and medical research, primarily for conducting various tests on samples, including living organisms, using a microfluidic framework. Recent studies have shown that the physiology…

Fluid Dynamics · Physics 2025-05-27 Siddhant Jain , Saini Jatin Rao , Shubhadeep Mandal , Cameron Tropea , Saptarshi Basu

Two-dimensional superfluidity and quantum turbulence are directly connected to the microscopic dynamics of quantized vortices. However, surface effects have prevented direct observations of coherent vortex dynamics in strongly-interacting…

There is a deep analogy between the physics of crystalline solids and the behavior of superfluids, dating back to pioneering work of Phillip Anderson, Paul Martin and others. The stiffness to shear deformations in a periodic crystal…

Soft Condensed Matter · Physics 2013-03-26 David R. Nelson , Ariel Amir

A method is presented for calculating electron-hole pair excitation due to an incident atom or molecule interacting with a metal surface. Energy loss is described using an \textit{ab initio} approach that obtains a position-dependent…

Materials Science · Physics 2009-10-01 J. R. Trail , M. C. Graham , D. M. Bird , M. Persson , S. Holloway

At the nucleus of a superconducting vortex is a small, circular region where superconductivity is destroyed. Like an atomic nucleus, this core may become deformed, and such distortions can have important consequences in non-equilibrium…

Superconductivity · Physics 2007-05-23 D. J. Priour , H. A. Fertig