We consider the problem of fermions interacting with gapless long-wavelength collective bosonic modes. The theory describes, among other cases, a ferromagnetic quantum-critical point (QCP) and QCP towards nematic ordering. construct controllable expansion at in two steps: we first create non-Fermi-liquid ``zero-order'' Eliashberg-type theory, then demonstrate that residual interaction effects are small. prove this approach is justified under conditions: should be smaller than fermionic...

Precise and rapid DNA segregation is required for proper inheritance of genetic material. In most bacteria archaea, this process assured by a broadly conserved mitotic-like apparatus in which NTPase (ParA) displaces the partition complex. Competing observations models imply starkly different 3D localization patterns components machinery during segregation. Here we use super-resolution microscopies to localize each component with respect bacterial chromosome. We show that Par proteins locate...

The edge channels of the quantum Hall effect provide one dimensional chiral and ballistic wires along which electrons can be guided in optics like setup. Electronic propagation then analyzed using concepts tools derived from optics. After a brief review electron experiments performed stationary current sources continuously emit conductor, this paper focuses on triggered sources, generate on-demand single particle state. It first outlines formalism its analogies differences with photon turns...

We study charge transport in voltage-biased single-channel junctions involving helical superconductors with finite Cooper pair momentum. For a Josephson junction, the equilibrium current-phase relation shows superconducting diode effect: critical current depends on propagation direction. formulate scattering theory for diodes and show that multiple Andreev reflection processes cause rich subharmonic structure dc current-voltage curve at low temperatures small voltages due to Doppler shifts...

We study the stability of quantum-critical point for itinerant ferromagnets commonly described by Hertz-Millis-Moriya (HMM) theory. argue that in $D\ensuremath{\le}3$ long-range spatial correlations associated with Landau damping order parameter field generate a universal negative, nonanalytic $|q{|}^{(D+1)/2}$ contribution to static magnetic susceptibility ${\ensuremath{\chi}}_{s}(q,0)$, which makes HMM theory unstable. actual transition is either towards incommensurate ordering, or first...

We consider an electronic analog of the Hong-Ou-Mandel (HOM) interferometer, where two single electrons travel along opposite chiral edge states and collide at a quantum point contact. Studying current noise, we show that because interactions between copropagating states, degree indistinguishability electron wave packets is dramatically reduced, leading to reduced contrast for HOM signal. This decoherence phenomenon strongly depends on energy resolution packets. Insofar as cause charge...

We study the minimal excitations of fractional quantum Hall edges, extending notion levitons to interacting systems. Using both perturbative and exact calculations, we show that they arise in response a Lorentzian potential with quantized flux. They carry an integer charge, thus involving several Laughlin quasiparticles, leave Poissonian signature Hanbury-Brown Twiss partition noise measurement at low transparency. This makes them readily accessible experimentally, ultimately offering...

Article16 November 2018Open Access Transparent process A conserved mechanism drives partition complex assembly on bacterial chromosomes and plasmids Roxanne E Debaugny Laboratoire de Microbiologie et Génétique Moléculaires, Centre Biologie Intégrative (CBI), National la Recherche Scientifique (CNRS), Université Toulouse, UPS, France Search for more papers by this author Aurore Sanchez Jérôme Rech Delphine Labourdette LISBP, CNRS, INRA, INSA, Dorignac Charles Coulomb, CNRS-Université...

We theoretically investigate spin transport at the interface between ferromagnetic insulator(FI) and a superconductor(SC). Considering simple FI-SC model, we derive formulas for current spin-current noise induced by microwave irradiation (spin pumping) or temperature gradient (the Seebeck effect). show how superconducting coherence factor affects dependence of current. also calculate in thermal equilibrium non-equilibrium states pumping, compare them quantitatively an yttrium-iron-garnet-NbN...

We consider a double quantum dot coupled to two normal leads and one superconducting lead, modeling the Cooper pair beam splitter studied in recent experiments. Starting from microscopic Hamiltonian we derive general expression for branching current noise crossed correlations terms of single- two-particle Green's function electrons. then study numerically how these quantities depend on energy configuration dots presence direct tunneling between them, isolating various processes which come...

We consider the electronic analog of quantum optics Hong-Ou-Mandel interferometer, in a realistic condensed matter device based on single electron emission chiral edge states. For electron-electron collisions, we show that measurement zero-frequency current correlations at output point contact produces dip giving precious information wavepackets and coherence. As feature truly unique to Fermi statistics matter, two-particle interferences between hole sea can produce positive peak...

We study the decoherence and relaxation of a single elementary electronic excitation propagating in one-dimensional chiral conductor. Using two-particle interferences analog Hong-Ou-Mandel experiment, we analyze quantitatively scenario electron along quantum Hall edge channel at filling factor 2. The results from emergence collective neutral excitations induced by Coulomb interaction leading, one dimension, to destruction quasiparticle. This establishes relevance optics setups provide...

Abstract The human pathogen Mycobacterium tuberculosis requires a P 1B -ATPase metal exporter, CtpC (Rv3270), for resistance to zinc poisoning. Here, we show that also depends on chaperone-like protein, PacL1 (Rv3269). contains transmembrane domain, cytoplasmic region with glutamine/alanine repeats and C-terminal metal-binding motif (MBM). binds Zn 2+ , but the MBM is required only at high concentrations. co-localizes in dynamic foci mycobacterial plasma membrane, two proteins form molecular...

An anyon collider can distinguish between two types of anyons associated with fractional quantum Hall states a 2D electron gas, step toward further investigation deemed useful for computing.

The fractional quantum Hall effect (FQHE) is known to host anyons, quasiparticles whose statistics intermediate between bosonic and fermionic. We show here that Hong-Ou-Mandel (HOM) interferences excitations created by narrow voltage pulses on the edge states of a FQHE system at low temperature direct signature anyonic statistics. width HOM dip universally fixed thermal time scale, independently intrinsic excited wave packets. This universal can be related braiding incoming with fluctuations...

Hydrolysis of ATP by partition ATPases, although considered a key step in the segregation mechanism that assures stable inheritance plasmids, is intrinsically very weak. The cognate centromere-binding protein (CBP), together with DNA, stimulates ATPase to hydrolyse and undertake relocation incites plasmid movement, apparently confirming need for hydrolysis partition. However, ATP-binding alone changes conformation properties, making it difficult rigorously distinguish substrate cofactor...

We propose an approach allowing the computation of currents and their correlations in interacting multiterminal mesoscopic systems involving quantum dots coupled to normal and/or superconducting leads. The formalism relies on expression branching noise crossed terms one- two-particle Green's functions for electrons, which are then evaluated self-consistently within a conserving approximation. apply this Cooper-pair beam-splitter setup recently proposed [L. Hofstetter et al. Nature (London)...

The {\pi}-{\pi} interactions between organic molecules are among the most important parameters for optimizing transport and optical properties of transistors, light-emitting diodes, (bio-) molecular devices. Despite substantial theoretical progress, direct experimental measurement electronic coupling energy parameter t has remained an old challenge due to structural variability large number that affect charge transport. Here, we propose a study from electrochemical current measurements on...

Efficient bacterial chromosome segregation typically requires the coordinated action of a three-component machinery, fueled by adenosine triphosphate, called partition complex. We present phenomenological model accounting for dynamic activity this system that is also relevant physics catalytic particles in active environments. The obtained coupling simple linear reaction-diffusion equations with proteophoresis, or "volumetric" chemophoresis, force field arises from protein-protein...

Using a periodic train of Lorentzian voltage pulses, which generates solitonlike electronic excitations called levitons, we investigate the charge density backscattered off quantum point contact in fractional Hall regime. We find regular pattern peaks and valleys, reminiscent analogous self-organization recently observed for optical solitons nonlinear environments. This crystallization phenomenon is confirmed by additional side dips Hong-Ou-Mandel noise, feature that can be present-day...

Abstract Electron correlation in a quantum many-body state appears as peculiar scattering behaviour at its boundary, symbolic of which is Andreev reflection metal-superconductor interface. Despite being fundamental nature, dictated by the charge conservation law, however, process has had no analogues outside realm superconductivity so far. Here, we report observation an Andreev-like originating from topological effect instead superconductivity. A narrow junction between fractional and...

Anyons are particles intermediate between fermions and bosons, characterized by a nontrivial exchange phase, yielding remarkable braiding statistics. Recent experiments have shown that anyonic has observable consequences on edge transport in the fractional quantum Hall effect (FQHE). Here, we study signatures of when anyons finite width. We show width anyons, even extremely small, can tremendous impact properties signatures. In particular, find taking into account allows us to explain recent...

Summary Low copy‐number bacterial replicons occupy specific locations in their host cells. Production of a GFP‐Lac repressor hybrid protein cells carrying F or P1 plasmids tagged with lac operator array reveals that smaller (younger) these are seen mainly as single fluorescent focus at mid‐cell, whereas larger tend to have two foci, one each quarter‐cell position. Duplication the central is presumed represent active partition plasmid copies. We report here our investigation by time‐lapse...