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We propose a two-dimensional model for the organization of stabilized microtubules driven by molecular motors in an unconfined geometry. In this model two kinds of dynamics are competing. The first one is purely diffusive, with an…

Statistical Mechanics · Physics 2019-08-17 B. Bassetti , M. Cosentino Lagomarsino , P. Jona

In contrast to silicon-based transistors, single molecule junctions can be gated by simple mechanical means. Specifically, charge can be transferred between the junction's electrodes and its molecular bridge when the interelectrode distance…

Mesoscale and Nanoscale Physics · Physics 2023-05-24 Biswajit Pabi , Jakub Šebesta , Richard Korytár , Oren Tal , Atindra Nath Pal

Polar molecules in selected quantum states can be guided, decelerated, and trapped using electric fields created by microstructured electrodes on a chip. Here we explore how transitions between two of these quantum states can be induced…

Atomic Physics · Physics 2015-03-17 Gabriele Santambrogio , Samuel A. Meek , Mark J. Abel , Liam M. Duffy , Gerard Meijer

The low-temperature transport properties of a molecule are studied in the field-effect transitor geometry. The molecule has an internal mechanical mode that modulates its electronic levels and renormalizes both the interactions and the…

Strongly Correlated Electrons · Physics 2008-01-23 P. S. Cornaglia , Gonzalo Usaj , C. A. Balseiro

A molecule can be optically accelerated to rotate unidirectionally at a frequency of a few terahertzes which is many orders higher than the classical mechanical rotor. Such a photon-induced ultrafast molecular unidirectional rotation has…

We excite diatomic oxygen and nitrogen to high rotational states with an optical centrifuge and study their dynamics in external magnetic field. Ion imaging is employed to directly visualize, and follow in time, the rotation plane of…

Chemical Physics · Physics 2015-04-08 Aleksey Korobenko , Valery Milner

Biological molecular motors are high-performance nanomachines that convert chemical energy into mechanical motion via chemomechanical coupling. Their reaction cycles typically comprise a series of intermediate chemical states between the…

Biological Physics · Physics 2025-05-26 Akihiro Fukuda , Yohei Nakayama , Shoichi Toyabe

Adherent cells have long been known to display two modes during migration: a faster mode that is persistent in direction and a slower one where they turn. Compared to the persistent mode, the turns are less studied. Here we develop a simple…

Biological Physics · Physics 2025-05-23 Yiyu Zhang , Xiaoyu Yu , Boyuan Zheng , Ye Xu , Qihui Fan , Fangfu Ye , Da Wei

Localized heating of a gas by intense laser pulses leads to interesting acoustic, hydrodynamic and optical effects with numerous applications in science and technology, including controlled wave guiding and remote atmosphere sensing.…

Optics · Physics 2015-09-30 A. A. Milner , A. Korobenko , K. Rezaiezadeh , V. Milner

A theoretical model of nuclear spin conversion in molecules controlled by an external electromagnetic radiation resonant to rotational transition has been developed. It has been shown that one can produce an enrichment of spin isomers and…

Chemical Physics · Physics 2009-11-06 P. L. Chapovsky

Molecular center-of-mass motion is taken into account in the theory of coherent control of nuclear spin isomers of molecules. It is shown that infrared radiation resonant to the molecular rovibrational transition can substantially enrich…

Chemical Physics · Physics 2009-11-07 P. L. Chapovsky

We propose a mechanism which allows one to control the transmission of single electrons through a molecular junction. The principle utilizes the emergence of transmission sidebands when molecular vibrational modes are coupled to the…

Mesoscale and Nanoscale Physics · Physics 2010-03-26 Thomas Olsen , Jakob Schiøtz

The bacterial flagellar motor drives the rotation of flagellar filaments and enables many species of bacteria to swim. Torque is generated by interaction of stator units, anchored to the peptidoglycan cell wall, with the rotor. Recent…

Subcellular Processes · Quantitative Biology 2010-08-18 G. Meacci , Y. Tu

The bacterial flagellar motor plays a crucial role in both bacterial locomotion and chemotaxis. Recent experiments reveal that the switching dynamics of the motor depends on the motor rotation speed, and thus the motor torque,…

Biological Physics · Physics 2013-07-26 Fan Bai , Tohru Minamino , Zhanghan Wu , Keiichi Namba , Jianhua Xing

Left-right axis specification establishes embryonic laterality through asymmetric signaling cascades originating at the cellular scale. We previously reported the presence of a directionality bias in confined pairs of endothelial (and…

Cell Behavior · Quantitative Biology 2026-03-31 Egun Im , Ghina Badih , Laetitia Kurzawa , Andreas Buttenschön , Calina Copos

We analyze the electronic transport through a model spin-1 molecule as a function of temperature, magnetic field and bias voltage. We consider the effect of magnetic anisotropy, which can be generated experimentally by stretching the…

Strongly Correlated Electrons · Physics 2011-06-24 P. S. Cornaglia , P. Roura Bas , A. A. Aligia , C. A. Balseiro

Energy transfer plays a vital role in many natural and technological processes. In this work, we study the effects of mechanical motion on the excitation transfer through a chain of interacting molecules with application to biological…

A tens of Tesla quasi-static axial magnetic field can be produced in the interaction of a short intense laser beam carrying an Orbital Angular Momentum with an underdense plasma. Three-dimensional "Particle In Cell" simulations and…

Plasma Physics · Physics 2018-10-03 R. Nuter , Ph. Korneev , I. Thiele , V. Tikhonchuk

The recent progress towards production of near-ground state quantum-degenerate molecules raises the issue of how such "small" molecules behave in an optical lattice. In this Letter we show that the coupling of the molecular orientation to…

Other Condensed Matter · Physics 2007-07-09 J. R. Holt , J. M. F. Gunn

Spintronics is the ability of injecting, manipulating and detecting electron spins into solid state systems. Molecular-electronics investigates the possibility of making electronic devices using organic molecules. Traditionally these two…

Materials Science · Physics 2007-05-23 Stefano Sanvito , Alexandre Reily Rocha
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