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Related papers: Interplay between Phonon Confinement and Fano Effe…

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We present theoretical study of ferromagnetic resonance in a system of two coupled magnetic layers. We show that an interaction between the layers leads to the occurrence of the so-called Fano resonance. The Fano resonance changes the shape…

Mesoscale and Nanoscale Physics · Physics 2019-03-27 O. G. Udalov , A. A. Fraerman , E. S. Demidov

After briefly reviewing the Fano effect, we explain why it may be relevant to various types of Aharonov-Bohm interferometers. We discuss both closed (electron conserving) and open interferometers, in which one path contains either a simple…

Mesoscale and Nanoscale Physics · Physics 2019-08-17 O. Entin-Wohlman , A. Aharony , Y. Imry , Y. Levinson

We analyze the influence of a local pairing on the quantum interference in nanoscopic systems. As a model system we choose the double quantum dot coupled to one metallic and one superconducting electrode in the T-shape geometry. The…

Mesoscale and Nanoscale Physics · Physics 2020-04-10 Jan Barański , Tomasz Zienkiewicz , Magdalena Barańska , Konrad Jerzy Kapcia

As the Fano effect is an interference phenomenon where tunneling paths compete for the electronic transport, it becomes a probe to catch fingerprints of Majorana fermions lying on condensed matter systems. In this work we benefit of this…

Mesoscale and Nanoscale Physics · Physics 2014-11-11 F. A. Dessotti , L. S. Ricco , M. de Souza , F. M. Souza , A. C. Seridonio

Microscopic description of Raman spectra in nanopowders of nonpolar crystals is accomplished by developing the theory of disorder-induced broadening of optical vibrational eigenmodes. Analytical treatment of this problem is performed, and…

Mesoscale and Nanoscale Physics · Physics 2020-11-25 Oleg I. Utesov , Andrey G. Yashenkin , Sergei V. Koniakhin

We theoretically study Fano resonance in a two-level quantum dot side-coupled to two leads, which are connected by a direct channel. The resonance lineshape is found to be deformed, from the conventional Fano form, by interlevel Coulomb…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 W. -R. Lee , Jaeuk U. Kim , H. -S. Sim

We report a transport experiment on the Fano effect in a quantum connecting wire (QW) with a side-coupled quantum dot (QD). The Fano resonance occurs between the QD and the "T-shaped" junction in the wire, and the transport detects…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Kensuke Kobayashi , Hisashi Aikawa , Akira Sano , Shingo Katsumoto , Yasuhiro Iye

We describe the Fano asymmetry by expanding the transmission amplitude with respect to states with point spectra (discrete eigenstates), including not only bound states but also resonant states with complex eigenvalues. We first introduce a…

Mesoscale and Nanoscale Physics · Physics 2019-05-30 Naomichi Hatano , Gonzalo Ordonez

Fano mechanism is the universal explanation of asymmetric resonance appearing in different systems. We report the evidence of Fano-like resonance in selective reflection from a resonant two-level medium. We draw an analogy with the…

Optics · Physics 2016-04-13 Denis V. Novitsky

As the silicon industry continues to push the limits of device dimensions, tools such as Raman spectroscopy are ideal to analyze and characterize the doped silicon channels. The effect of inter-valence band transitions on the zone center…

Materials Science · Physics 2015-05-14 Brian G. Burke , Jack Chan , Keith A. Williams , Zili Wu , Alexander A. Puretzky , David B. Geohegan

We discuss the thermoelectric properties assisted by the Fano effect of a parallel double quantum dot (QD) structure. By adjusting the couplings between the QDs and leads, we facilitate the nonresonant and resonant channels for the Fano…

Mesoscale and Nanoscale Physics · Physics 2011-12-22 Wei-Jiang Gong , Guo-Zhu Wei

The transmission probability and phase through a few-electron quantum dot are studied within a resonance theory for the strong coupling regime to the conducting leads. We find that the interaction between overlapping resonances leads to…

Mesoscale and Nanoscale Physics · Physics 2011-05-09 E. R. Racec

Asymmetric spectral line shapes are a hallmark of interference of a quasi-bound state with a continuum of states. Such line shapes are well known for multichannel systems, for example, in photoionization or Feshbach resonances in molecular…

Quantum Physics · Physics 2022-05-18 Prerna Paliwal , Alexander Blech , Christiane P. Koch , Edvardas Narevicius

We investigate the effect of decoherence on Fano resonances in wave transmission through resonant scattering structures. We show that the Fano asymmetry parameter q follows, as a function of the strength of decoherence, trajectories in the…

Single metallic nanorods acting as half-wave antennas in the optical range exhibit an asymmetric, multi-resonant scattering spectrum that strongly depends on both their length and dielectric properties. Here we show that such spectral…

We measure and analyze reflection spectra of directly coupled systems of waveguides and cavities. The observed Fano lines offer insight in the reflection and coupling processes. Very different from side-coupled systems, the observed Fano…

We show that external control of Fano resonances in general leads to complex Fano $q$-parameters. Fano line shapes of photo-electron and transient absorption spectra in presence of an infrared control field are investigated. Computed…

The temperature dependence below $T_{c}$ of the lineshape of optical phonons of different symmetry as seen in Raman scattering is investigated for superconductors with anisotropic energy gaps. It is shown that the symmetry of the…

Condensed Matter · Physics 2009-10-22 T. P. Devereaux

We have studied the Fano effect in a few-electron quantum dot side-coupled to a quantum wire. The conductance of the wire, which shows an ordinal staircase-like quantization without the dot, is modified through the interference (the Fano…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Tomohiro Otsuka , Eisuke Abe , Shingo Katsumoto , Yasuhiro Iye , Gyong Luck Khym , Kicheon Kang

Conductance through a system consisting of a wire with side-attached quantum dots is calculated. Such geometry of the device allows to study the coexistence of quantum interference, electron correlations and their influence on conductance.…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Piotr Stefanski