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Electronic transport through a quantum dot strongly coupled to electrodes is studied within a model with two conduction channels. It is shown that multiple scattering and interference of transmitted waves through both channels lead to Fano…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 Bogdan R. Bulka , Piotr Stefanski

We demonstrate theoretically the Fano resonance and the conversion from fast to slow light in a hybrid quantum dot-semiconductor/superconductor ring device, where the QD is coupled to a pair of MFs appearing in the hybrid S/S ring device.…

Quantum Physics · Physics 2019-03-12 Hua-Jun Chen

Transport properties of a single plasmon interacting with two quantum dots (QDs) system coupled to one-dimensional surface plasmonic waveguide are investigated theoretically via the real-space approach. We mainly focus on the coupling…

Reradiation of a spatially non-uniform ultrashort electromagnetic pulse interacting with the linear chain of multielectron atoms is studied in the framework of sudden perturbation approximation. Angular distributions of the reradiation…

Atomic Physics · Physics 2018-10-16 V. I. Matveev , D. U. Matrasulov

Coherence and interference play crucial roles in emission and absorption of photons to and from large systems with many atoms. Confusion has arisen because nuclear X-ray physicists and atomic quantum-optics physicists do not understand one…

Other Condensed Matter · Physics 2012-02-16 Harry J. Lipkin

Similar to radiation pressure, photothermal effects connect the optical path length to an intracavity field, resulting in nonlinear behavior of the resonator due to thermal effects. Here, we theoretically investigate the nonlinear optics…

Optics · Physics 2023-03-07 Akhtar Munir

We study one- and two-photon scattering from a qubit embedded in a one-dimensional waveguide in the presence of modal dispersion. We use a resolvent based analysis and utilize techniques borrowed from the Lee model studies. Modal dispersion…

Quantum Physics · Physics 2016-03-16 Şükrü Ekin Kocabaş

The collisional properties of lanthanides exhibit remarkable complexity due to their many valence electrons, leading to an extraordinarily dense Feshbach spectrum showing signs of quantum chaos. Here we explore the situation of bosonic spin…

In the presence of direct trajectories connecting source and drain contacts, the conductance of a quantum dot may exhibit resonances of the Fano type. Since Fano resonances result from the interference of two transmission pathways, their…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 A. A. Clerk , X. Waintal , P. W. Brouwer

Quantum path interferences occur whenever multiple equivalent and coherent transitions result in a common final state. Such interferences strongly modify the probability of a particle to be found in that final state, a key concept of…

Based on calculations of the electronic structure of coupled multiple quantum dots, we study systemically the transport properties of the system driven by an ac electric field. We find qualitative difference between transport properties of…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Wanyuan Xie , Hui Pan , Weidong Chu , Wei Zhang , Suqing Duan

Nowadays nanotechnology allows to scale-down various important devices (sensors, chips, fibres, etc), and, thus, opens up new horizon for their applications. Nevertheless, the efficiency most of them is still based on the fundamental…

Materials Science · Physics 2010-08-13 Andrey E. Miroshnichenko , Sergej Flach , Yuri S. Kivshar

Multi-photon interference results in modulations of output probabilities with phase shift periods that are much shorter than 2 Pi. Here, we investigate the physics behind these statistical patterns in the case of well-defined photon numbers…

Quantum Physics · Physics 2016-10-12 Holger F. Hofmann , Keito Hibino , Kazuya Fujiwara , Jun-Yi Wu

We investigate the Andreev reflection in the parallel double-quantum-dot structure, by considering one metallic lead and one $s$-wave superconductor to couple to the quantum dots simultaneously. It is found that the Fano lineshhape has…

Mesoscale and Nanoscale Physics · Physics 2019-09-11 Xiao Qi Wang , Shu-Feng Zhang , Yu Han , Wei-Jiang Gong

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

We present a detailed analysis of the dynamics of photon transport in waveguiding systems in the presence of a two-level system. In these systems, quantum interference effects generate a strong effective optical nonlinearity on the…

Mesoscale and Nanoscale Physics · Physics 2010-01-20 Paolo Longo , Peter Schmitteckert , Kurt Busch

In this paper, we propose a theoretical scheme to investigate the magnomechanically induced transparency (MMIT) phenomenon, Fano resonances, and slow/fast light effects in a hybrid cavity magnomechanical system. The magnomechanical system…

Quantum Physics · Physics 2025-04-17 M'bark Amghar , Noura Chabar , Mohamed Amazioug , Amjad Sohail Shah

Defects in semiconductors, traditionally seen as detrimental to electronic device performance, have emerged as potential assets in quantum technologies due to their unique quantum properties. This study investigates the interaction between…

Mesoscale and Nanoscale Physics · Physics 2024-07-19 Motoya Shinozaki , Takaya Abe , Kazuma Matsumura , Takumi Aizawa , Takashi Kumasaka , Tomohiro Otsuka

When intense light irradiates a quantum system, an ionizing electron recollides with its parent ion within the same light cycle and, during that very brief (few femtosecond) encounter, its kinetic energy sweeps from low to high energy and…

Atomic Physics · Physics 2020-10-13 Graham G. Brown , Dong Hyuk Ko , Chunmei Zhang , P. B. Corkum

We investigate the Fano-type spectroscopic lineshapes of the T-shape double quantum dot coupled between the conducting and superconducting electrodes and analyze their stability on a decoherence. Because of the proximity effect the quantum…

Mesoscale and Nanoscale Physics · Physics 2012-06-01 J. Baranski , T. Domanski
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