English
Related papers

Related papers: Electron spin dynamics guide cell motility

200 papers

Control of quantum systems typically relies on the interaction with electromagnetic radiation. In this study, we experimentally show that the electromagnetic near-field of a spatially modulated freespace electron beam can be used to drive…

The analysis of glioblastoma (GB) cell locomotion and its modeling inspired by Levy random walks is presented herein. We study such walks occurring on a two-dimensional plane where the walk is similar to the motion of a bird flying with a…

We study spin-dependent transport in a two-dimensional electron gas subject to an external step-like potential $V(x)$ and irradiated by an electromagnetic field (EF). In the absence of EF the electronic spectrum splits into spin sub-bands…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 M. V. Fistul , K. B. Efetov

We detail new force-free simulations to investigate magnetosphere evolution and precursor electromagnetic (EM) signals from binary neutron stars. Our simulations fully follow a representative inspiral motion, capturing the intricate…

The control of "flying" (or moving) spin qubits is an important functionality for the manipulation and exchange of quantum information between remote locations on a chip. Typically, gates based on electric or magnetic fields provide the…

Mesoscale and Nanoscale Physics · Physics 2022-10-12 Paul L. J. Helgers , James A. H. Stotz , Haruki Sanada , Yoji Kunihashi , Klaus Biermann , Paulo V. Santos

Eukaryotic cells and intracellular pathogens such as bacteria or viruses utilize the actin polymerization machinery to propel themselves forward. Thereby, the onset of motion and choice of direction may be the result of a spontaneous…

Soft Condensed Matter · Physics 2009-09-04 Karin John , Denis Caillerie , Philippe Peyla , Mourad Ismail , Annie Raoult , Jacques Prost

We use inhomogeneous nonequilibrium dynamical mean-field theory to investigate the spreading of photo-excited carriers in Mott insulating heterostructures with strong internal fields. Antiferromagnetic correlations are found to affect the…

Strongly Correlated Electrons · Physics 2014-08-15 Martin Eckstein , Philipp Werner

Experimental evidence indicates that human brain cancer cells proliferate or migrate, yet do not display both phenotypes at the same time. Here, we present a novel computational model simulating this cellular decision-process leading up to…

Cell Behavior · Quantitative Biology 2007-05-23 Chaitanya Athale , Yuri Mansury , Thomas S. Deisboeck

We present a theoretical study of magnetic field driven spin transitions of electrons in coupled lateral quantum dot molecules. A detailed numerical study of spin phases of artificial molecules composed of two laterally coupled quantum dots…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 Ramin M. Abolfath , Pawel Hawrylak

Galvanotaxis is believed to be driven by the redistribution of transmembrane proteins and other molecules, referred to as "sensors", through electrophoresis and electroosmosis. Here, we update our previous model of the limits of…

Cell Behavior · Quantitative Biology 2024-12-04 Ifunanya Nwogbaga , Brian A. Camley

The photoinduced magnetism in manganese-tetracyanoethylene (Mn-TCNE) molecule-based magnets is ascribed to charge-transfer excitations from manganese to TCNE. Charge-transfer energies are calculated using Density Functional Theory;…

Materials Science · Physics 2015-06-25 Serkan Erdin , Michel van Veenendaal

Understanding how the effectiveness of natural photosynthetic energy harvesting systems arises from the interplay between quantum coherence and environmental noise represents a significant challenge for quantum theory. Recently it has begun…

Biological Physics · Physics 2015-06-16 E. K. Irish , R. Gómez-Bombarelli , B. W. Lovett

Collective cell migration plays an essential role in vertebrate development, yet the extent to which dynamically changing microenvironments influence this phenomenon remains unclear. Observations of the distribution of the extracellular…

An electron mobility enhancement is the very important phenomenon of an electron in the electronic device, where the high electronic device performance has the good electron mobility, which is obtained by the overall electron drift velocity…

Optics · Physics 2016-12-13 N. Pornsuwancharoen , P. Youplao , I. S. Amiri , J. Ali , P. Yupapin

The treatment of the previous paper is extended to molecular wires. Specifically, the effect of electron-vibrational interactions on the electronic transport induced by femtosecond $\omega+2\omega$ laser fields along unbiased molecular…

Quantum Physics · Physics 2009-11-13 Ignacio Franco , Moshe Shapiro , Paul Brumer

Quantum sensing enables the ultimate precision attainable in parameter estimation. Circumstantial evidence suggests that certain organisms, most notably migratory songbirds, also harness quantum-enhanced magnetic field sensing via a…

Quantum Physics · Physics 2026-04-17 Luke D. Smith , Jonas Glatthard , Farhan T. Chowdhury , Daniel R. Kattnig

Within the Sommerfeld atomic model the quantization of magnetic flux through the electronic orbits is investigated together with its dependency on additional sources of magnetic fields. These sources alter the magnetic flux through the…

Quantum Physics · Physics 2013-02-26 W. -D. R. Stein

Charge transfer in polymer devices represents a crucial, though highly inaccessible stage of photocurrent generation. In this article we propose studying the properties and behaviour of organic solar cells through the modification of…

Applied Physics · Physics 2018-09-27 S. Oviedo-Casado , A. Urbina , J. Prior

The exciton recombination and spin dynamics are investigated both experimentally and theoretically in an ensemble of indirect band gap (In,Al)As/AlAs quantum dots (QDs) with type-I band alignment. The magnetic-field-induced circular…

Mesoscale and Nanoscale Physics · Physics 2025-07-08 T. S. Shamirzaev , D. R. Yakovlev , D. S. Smirnov , V. N. Mantsevich , D. Kudlacik , A. Yu. Gornov , A. K. Gutakovskii , M. Bayer

In this letter we explore how the microscopic dynamics of charge transfer (CT) excitons are influenced by the presence of an external magnetic field in disordered molecular semiconductors. This influence is driven by the dynamic interplay…

Chemical Physics · Physics 2016-06-03 Chee Kong Lee , Liang Shi , Adam P. Willard