English
Related papers

Related papers: Quantum smell: tunneling mechanisms in olfaction

200 papers

Within the frame of quantum dissipation theory, we develop a new hierarchical equations of motion theory, combined with the small polaron transformation. We fully investigate the electron transport of a single attractive impurity system…

Mesoscale and Nanoscale Physics · Physics 2013-06-04 Feng Jiang , Shikuan Wang , Hang Xie , Yonghong Yan , YiJing Yan

While there are many physical processes showing subdiffusion and some useful particle models for understanding the underlying mechanisms have been established, a systematic study of subdiffusive energy transport is still lacking. Here we…

Statistical Mechanics · Physics 2022-10-05 Daxing Xiong , Jianjin Wang

Deep learning methods have been widely applied to visual and acoustic technology. In this paper, we proposed an odor labeling convolutional encoder-decoder (OLCE) for odor identification in machine olfaction. OLCE composes a convolutional…

Machine Learning · Computer Science 2021-01-07 Tengteng Wen , Zhuofeng Mo , Jingshan Li , Qi Liu , Liming Wu , Dehan Luo

In many organic molecules the strong coupling of excess charges to vibrational modes leads to the formation of polarons, i.e., a localized state of a charge carrier and a molecular deformation. Incoherent hopping of polarons along the…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 Benjamin B. Schmidt , Matthias H. Hettler , Gerd Schön

It is shown that the voltage dependence of the tunneling conductance between two lightly doped semiconductors, which are separated by an large area tunneling barrier, can reveal the high energy part of the Coulomb gap if the barrier is…

Condensed Matter · Physics 2015-06-24 A. I. Larkin , B. I. Shklovskii

Oscillations of conductance observed in strong magnetic fields are a striking manifestation of the quantum dynamics of charge carriers in solids. The large charge carrier density in typical metals sets the scale of oscillations in both…

It is well known that the interaction of quantum systems with the environment reduces the inherent quantum correlations. Under special circumstances the effect of decoherence can be reversed, for example, the interaction modeled by an…

Quantum Physics · Physics 2017-03-08 Shounak Datta , Suchetana Goswami , Tanumoy Pramanik , A. S. Majumdar

Electronic transport through DNA wires in the presence of a strong dissipative environment is investigated. We show that new bath-induced electronic states are formed within the bandgap. These states show up in the linear conductance…

Soft Condensed Matter · Physics 2007-05-23 R. Gutierrez , S. Mandal , G. Cuniberti

We present quantum transport measurements of interacting parallel quantum dots formed in the strands of a carbon nanotube rope. In this molecular quantum dot system, transport is dominated by one quantum dot, while additional resonances…

Mesoscale and Nanoscale Physics · Physics 2015-06-11 Karin Goß , Martin Leijnse , Sebastian Smerat , Maarten R. Wegewijs , Claus M. Schneider , Carola Meyer

We consider a class of systems where, due to the large mismatch of dielectric constants, the Coulomb interaction is approximately one-dimensional. Examples include ion channels in lipid membranes and water filled nanopores in silicon or…

Statistical Mechanics · Physics 2015-06-25 A. Kamenev , J. Zhang , A. I. Larkin , B. I. Shklovskii

Olfaction lies at the intersection of chemical structure, neural encoding, and linguistic perception, yet existing representation methods fail to fully capture this pathway. Current approaches typically model only isolated segments of the…

Computation and Language · Computer Science 2026-04-21 Yanyi Su , Hongshuai Wang , Zhifeng Gao , Jun Cheng

Understanding the electronic properties of dopants near an interface is a critical challenge for nano-scale devices. We have determined the effect of dielectric mismatch and quantum confinement on the ionization energy of individual…

Mesoscale and Nanoscale Physics · Physics 2015-06-15 J. A. Mol , J. Salfi , J. A. Miwa , M. Y. Simmons , S. Rogge

A theory of transport in the quantum Hall regime is developed for separately contacted double-layer electron systems. Inter-layer tunneling provides a channel for equilibration of the distribution functions in the two layers at the edge…

Mesoscale and Nanoscale Physics · Physics 2009-10-30 Daijiro Yoshioka

High electrical conductance molecular nanowires are highly desirable components for future molecular-scale circuitry, but typically molecular wires act as tunnel barriers and their conductance decays exponentially with length. Here we…

Mesoscale and Nanoscale Physics · Physics 2018-08-01 Norah Algethami , Hatef Sadeghi , Sara Sangtarash , Colin J Lambert

Transport in strongly correlated fermions cannot be understood by fermionic quasiparticles alone. We present a theoretical framework for quantum transport that incorporates strong local correlations of fermion pairs. These contact…

Quantum Gases · Physics 2025-02-12 Tilman Enss

Intramolecular energy transport is generally responsible for chemical energy balance in molecular systems. The transport is fast and efficient if energy is transferred by optical phonons in periodic oligomers, but its efficiently is limited…

Chemical Physics · Physics 2024-06-11 Alexander L. Burin , Igor V. Rubtsov

We explore electron transport properties for the model of benzene-1, 4-dithiolate (BDT) molecule and for some other geometric models of benzene molecule attached to two semi-infinite one-dimensional metallic electrodes using the Green's…

Mesoscale and Nanoscale Physics · Physics 2010-04-13 Santanu K. Maiti

We present an extended discussion of a recently proposed theoretical approach for off-resonance tunneling transport. The proofs and the arguments are explained at length and simple analogies and illustrations are used where possible. The…

Mesoscale and Nanoscale Physics · Physics 2009-07-25 Emil Prodan , Roberto Car

We investigate electron transport through a mono-atomic wire which is tunnel coupled to two electrodes and also to the underlying substrate. The setup is modeled by a tight-binding Hamiltonian and can be realized with a scanning tunnel…

Mesoscale and Nanoscale Physics · Physics 2010-11-25 Tomasz Kwapinski , Sigmund Kohler , Peter Hanggi

The anomalous low-temperature properties of glasses arise from intrinsic excitable entities, so-called tunneling Two-Level-Systems (TLS), whose microscopic nature has been baffling solid-state physicists for decades. TLS have become…