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相关论文: Finite frequency noise in chiral Luttinger liquid …

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We study the effects of electron-phonon interactions on the transport properties of a molecular quantum dot coupled to two Luttinger-liquid leads. In particular, we investigate the effects on the steady state current and DC noise…

介观与纳米尺度物理 · 物理学 2009-11-10 So Takei , Yong Baek Kim , Aditi Mitra

We investigate theoretically the nonequilibrium finite-frequency current noise in a four-terminal quantum point contact of interacting helical edge states at a finite bias voltage. Special focus is put on the effects of the single-particle…

强关联电子 · 物理学 2013-07-17 Yu-Wen Lee , Yu-Li Lee , Chung-Hou Chung

We consider the effect of electron-phonon interactions on edge states in quantum Hall systems with a single edge branch. The presence of electron-phonon interactions modifies the single-particle propagator for general quantum Hall edges,…

凝聚态物理 · 物理学 2009-10-28 O. Heinonen , Sebastian Eggert

We theoretically study the electrical transport properties of a single level quantum dot connected to two normal conducting leads, which is coupled to the lattice vibrations. We determine the current through the quantum dot in two different…

介观与纳米尺度物理 · 物理学 2020-09-01 Levente Máthé , Ioan Grosu

We investigate two equivalent capacitively and tunnel coupled quantum dots, each coupled to its own pair of leads. Local Holstein type electron-phonon coupling at the dots is assumed. To study many-body effects we use the finite-U…

介观与纳米尺度物理 · 物理学 2023-11-20 D. Krychowski , S. Lipiński

We analyze the current noise, generated at a quantum point contact in fractional quantum Hall edge state devices, using the chiral Luttinger liquid model with an impurity and the associated exact field theoretic solution. We demonstrate…

介观与纳米尺度物理 · 物理学 2007-05-23 B. Trauzettel , P. Roche , D. C. Glattli , H. Saleur

We propose and analyze the non-equilibrium finite frequency current-current correlations as a mean to characterize the helical nature of the edge states in a quantum spin hall geometry. We show that the finite frequency noise enables to…

介观与纳米尺度物理 · 物理学 2012-11-16 J. -R. Souquet , P. Simon

We study the transport properties of the quantum Hall bilayers systems looking closely at the effect that disorder and electron-phonon interaction have on the interlayer tunnelling current in the presence of an in-plane magnetic field…

强关联电子 · 物理学 2010-02-25 O. G. C. Ros , D. K. K. Lee

We show that electron-phonon coupling strongly affects transport properties of the Luttinger liquid hybridized with a resonant level. Namely, this coupling significantly modifies the effective energy-dependent width of the resonant level in…

强关联电子 · 物理学 2011-08-04 Alexey Galda , Igor V. Yurkevich , Igor V. Lerner

We explore the low-frequency noise of interacting electrons in a one-dimensional structure (quantum wire or interaction-coupled edge states) with counterpropagating modes, assuming a single channel in each direction. The system is driven…

强关联电子 · 物理学 2015-10-20 J. K. Kühne , I. V. Protopopov , Y. Oreg , A. D. Mirlin

We compute the high-frequency emission and absorption noise in a fractional quantum Hall effect (FQHE) sample at arbitrary temperature. We model the edges of the FQHE as chiral Luttinger liquids (LL) and we use the non-equilibrium…

强关联电子 · 物理学 2009-11-13 Cristina Bena , Ines Safi

The effect of electron-phonon coupling on the current noise in a molecular junction is investigated within a simple model. The model comprises a 1-level bridge representing a molecular level that connects between two free electron…

介观与纳米尺度物理 · 物理学 2007-05-23 Michael Galperin , Abraham Nitzan , Mark A. Ratner

Photons are emitted or absorbed by a nano-circuit under both equilibrium and non-equilibrium situations. Here, we focus on the non-equilibrium situation arising due to a temperature difference between the leads of a quantum point contact,…

介观与纳米尺度物理 · 物理学 2023-07-07 K. Iyer , J. Rech , T. Jonckheere , L. Raymond , B. Grémaud , T. Martin

We derive the symmetrized current-noise spectrum of a quantum dot, which is weakly tunnel-coupled to an electron reservoir and driven by a slow time-dependent gate voltage. This setup can be operated as an on-demand emitter of single…

介观与纳米尺度物理 · 物理学 2018-09-12 Niklas Dittmann , Janine Splettstoesser

We study non-equilibrium noise in Chiral Luttinger Liquids using the Landauer-Buttiker Scattering approach, obtaining the current/voltage noise spectrum for a four-terminal measurement scheme. Experimental consequences of the tunneling of…

凝聚态物理 · 物理学 2007-05-23 C. de C. Chamon , D. E. Freed , X. G. Wen

Finite frequency current noise is studied theoretically for a 1D electron system in presence of a scatterer. In contrast to zero frequency shot noise, finite frequency noise shows spatial oscillations at high frequencies with wavelength…

介观与纳米尺度物理 · 物理学 2009-11-07 B. Trauzettel , H. Grabert

We study the out-of-equilibrium transport in a Tomonaga-Luttinger liquid containing a weak or a tunneling barrier coupled to an arbitrary electromagnetic environment. This applies as well to a coherent one-channel non-interacting conductor…

介观与纳米尺度物理 · 物理学 2013-11-26 J. -R. Souquet , I. Safi , P. Simon

We study the influence of electron-phonon coupling on electron transport through a Luttinger liquid with an embedded weak scatterer or weak link. We derive the renormalization group (RG) equations which indicate that the directions of RG…

强关联电子 · 物理学 2011-08-04 Alexey Galda , Igor V. Yurkevich , Igor V. Lerner

We analyse non-equilibrium transport properties of a single-state molecular quantum dot coupled to a local phonon and contacted by two electrodes. We derive the effective non-equilibrium (Keldysh) action for the phonon mode and study the…

介观与纳米尺度物理 · 物理学 2007-05-23 Alexander O. Gogolin , Andrei Komnik

Interactions between electrons and phonons play a crucial role in quantum materials. Yet, there is no universal method that would simultaneously accurately account for strong electron-phonon interactions and electronic correlations. By…

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