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We unravel how functional plasticity and redundancy are essential mechanisms underlying the ability to survive of metabolic networks. We perform an exhaustive computational screening of synthetic lethal reaction pairs in Escherichia coli in…

Molecular Networks · Quantitative Biology 2015-06-17 Oriol Güell , Francesc Sagués , M. Ángeles Serrano

We revisit motility-induced phase separation in two models of active particles interacting by pairwise repulsion. We show that the resulting dense phase contains gas bubbles distributed algebraically up to a typically large cutoff scale. At…

Statistical Mechanics · Physics 2021-01-27 Xia-qing Shi , Giordano Fausti , Hugues Chaté , Cesare Nardini , Alexandre Solon

We report molecular dynamics simulations of a system of repulsive, polymer-tethered colloidal particles. We use an explicit polymer model to explore how the length and the behavior of the polymer (ideal or self-avoiding) affect the ability…

Soft Condensed Matter · Physics 2015-05-14 Behnaz Bozorgui , Maya Sen , William L. Miller , Josep C. Pamies , Angelo Cacciuto

A model system has been recently developed to study adhesion. It consists of a giant lipid bilayer vesicle with reconstituted lipo-polymers (repellers) as well as with lipo-ligands recognized by receptors covering the substrate. Adhesion in…

Soft Condensed Matter · Physics 2007-05-23 A. Boulbitch

The lactose uptake-pathway of E. coli is a paradigmatic example of multistability in gene-regulatory circuits. In the induced state of the lac-pathway, the genes comprising the lac-operon are transcribed, leading to the production of…

Molecular Networks · Quantitative Biology 2023-02-01 Prasanna M. Bhogale , Robin A. Sorg , Jan-Willem Veening , Johannes Berg

We investigate a Bose-Einstein condensate strongly coupled to an optical cavity via a repulsive optical lattice. We detect a stable self-ordered phase in this regime, and show that the atoms order through an antisymmetric coupling to the…

Quantum Gases · Physics 2019-12-23 P. Zupancic , D. Dreon , X. Li , A. Baumgärtner , A. Morales , W. Zheng , N. R. Cooper , T. Esslinger , T. Donner

We use a coherent Bragg diffraction method to impart an external momentum to ultracold bosonic atoms trapped in a one-dimensional optical lattice. This method is based on the application of a single light pulse, with conditions where…

Quantum Gases · Physics 2015-05-27 Xinxing Liu , Xiaoji Zhou , Wei Zhang , Thibault Vogt , Bo Lu , Xuguang Yue , Xuzong Chen

In this work, the one-dimensional implicit particle-in-cell/Monte-Carlo collision code (PIC/MCC) is used to study the discharge of a capacitively coupled plasma (CCP) under extremely low pressure driven by high-frequency rf power in pure…

Plasma Physics · Physics 2023-12-12 Hao Wu , Ran An , Dong Zhong , Wei Jiang , Ya Zhang

Plaquette lattices with each unit cell containing multiple atoms are good candidates for disconnected Fermi surfaces, which are shown by Kuroki and Arita to be favorable for spin-flucutation mediated superconductivity from electron…

Superconductivity · Physics 2009-11-07 Takashi Kimura , Yuji Zenitani , Kazuhiko Kuroki , Ryotaro Arita , Hideo Aoki

We study the local well-posedness of the solution to a coupled nonlinear elliptic-parabolic system which models electrical discharge in a Micro-Electro-Mechanical System (MEMS). A simple MEMS capacitor device contains two plates acting as…

Analysis of PDEs · Mathematics 2026-02-26 Heiko Gimperlein , Runan He , Andrew A. Lacey

In this work the systematic theory of discharge structure is built for highly electronegative plasma, by means of self-consistent fluid model simulation that is based on the finite element method. The highly electronegative plasma is…

Plasma Physics · Physics 2025-04-22 Yuan-He Sun , Shu-Xia Zhao , Yu Tian

A model for impedance of a PEM fuel cell cathode catalyst layer under simultaneous application of potential and oxygen concentration perturbations is developed and solved. The resulting expression demonstrates dramatic lowering of the layer…

Chemical Physics · Physics 2023-10-16 Andrei Kulikovsky

The type 1 pilus is a bacterial filament consisting of a long coiled proteic chain of subunits joined together by non-covalent bonding between complementing $\beta$-strands. Its strength and structural stability are critical for its…

Biological Physics · Physics 2020-04-17 Fabiano Corsetti , Alvaro Alonso-Caballero , Simon Poly , Raul Perez-Jimenez , Emilio Artacho

We compute the absorption spectrum of strongly repulsive one-dimensional bosons in a disordered or quasi-periodic optical lattice. At commensurate filling, the particle-hole resonances of the Mott insulator are broadened as the disorder…

Quantum Gases · Physics 2009-10-28 G. Orso , A. Iucci , M. A. Cazalilla , T. Giamarchi

This paper builds upon the fundamental work of Niwa et al. [34], which provides the unique possibility to analyze the relative aggregation/folding propensity of the elements of the entire Escherichia coli (E. coli) proteome in a cell-free…

Computational Engineering, Finance, and Science · Computer Science 2015-07-22 Lorenzo Livi , Alessandro Giuliani , Antonello Rizzi

A scheme is proposed to achieve substantial controllable phase modulation for a probe field propagating through a thermal atomic vapor in double-$\Lambda$ configuration. The phase modulation is based on the linear susceptibility of the…

Quantum Physics · Physics 2015-06-19 Lida Zhang , Jörg Evers

Making use of symmetry properties and known exact results for the Hubbard Model on bipartite lattice, we show that (1) there is no phase separation for repulsive coupling at low dopings, (2) phase separation and superconductivity co-exist…

Condensed Matter · Physics 2007-05-23 Chi Au , Bao-Heng Zhao , H. T. Nieh

Living systems routinely consume energy to achieve motility, often using intricate biomolecular machinery. In this work, we show that active droplets can sustain indefinite self-propulsion of a spherical colloid in an otherwise homogeneous,…

Soft Condensed Matter · Physics 2026-05-01 Benjamin Sorkin , Ned S. Wingreen

Recently we have studied, using numerical simulations, a limited valency model, i.e. an attractive square well model with a constraint on the maximum number of bonded neighbors. Studying a large region of temperatures $T$ and packing…

Soft Condensed Matter · Physics 2009-11-11 E. Zaccarelli , I. Saika-Voivod , A. J. Moreno , E. La Nave , S. V. Buldyrev , F. Sciortino , P. Tartaglia

Drug resistant bacteria, prions and nosocomial infections underline the need of more effective sterilizing technologies. The cold plasma technology is expected to bring a benefit in this context. Six different plasma sources, based on…

Plasma Physics · Physics 2022-08-02 Jonathan Gail , Alisa Schmidt , Markus H. Thoma