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The vibrational theory of olfaction was posited to explain subtle effects in the sense of smell inexplicable by models in which molecular structure alone determines an odorant's smell. Amazingly, behavioral and neurophysiological evidence…

Biological Physics · Physics 2019-05-01 Nishattasnim Liza , Enrique P. Blair

The validity of the dissipative quantum model of olfaction has not been examined yet and therefore the model suffers from the lack of experimental support. Here, we generalize the model and propose a numerical analysis of the dissipative…

Chemical Physics · Physics 2017-01-05 Arash Tirandaz , Farhad Taher Ghahramani , Vahid Salari

Motivated by a proposed olfactory mechanism based on a vibrationally-activated molecular switch, we study electron transport within a donor-acceptor pair that is coupled to a vibrational mode and embedded in a surrounding environment. We…

Mesoscale and Nanoscale Physics · Physics 2015-02-12 Agata Checinska , Felix A. Pollock , Libby Heaney , Ahsan Nazir

The mechanism by which odorants are recognized by olfactory receptors remains primarily unresolved. While charge transport is believed to play a significant role, its precise nature is still unclear. Here, we present a novel perspective by…

Chemical Physics · Physics 2025-06-30 Dominik Szczȩśniak , Ewa Drzazga-Szczȩśniak , Sabre Kais

Our objective is to study resonant tunneling of an electron in the presence of inelastic scattering by optical phonons. Using a recently developed technique, based on exact mapping of a many-body problem onto a one-body problem, we compute…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 K. Haule , J. Bonca

Ultrafast thermal transport in low-dimensional materials challenges traditional diffusive models due to reduced scattering, strong electron-phonon coupling, and pronounced non-equilibrium effects. To address these complexities, we extend…

Mesoscale and Nanoscale Physics · Physics 2025-12-01 Houssem Rezgui , Chuang Zhang , Clivia Sotomayor-Torres

Our sense of smell relies on sensitive, selective atomic-scale processes that are initiated when a scent molecule meets specific receptors in the nose. However, the physical mechanisms of detection are not clear. While odorant shape and…

Biological Physics · Physics 2015-06-26 Jennifer C. Brookes , Filio Hartoutsiou , A. P. Horsfield , A. M. Stoneham

Irradiation of biological matter triggers a cascade of secondary particles that interact with their surroundings, resulting in damage. Low-energy electrons are one of the main secondary species and electron-phonon interaction plays a…

Chemical Physics · Physics 2017-03-29 Valerio Rizzi , Tchavdar N. Todorov , Jorge J. Kohanoff

Quantum defects have shown to play an essential role for the non-radiative recombination in metal halide perovskites (MHPs). Nonetheless, the processes of charge transfer-assisted by defects are still ambiguous. Herein, we theoretically…

Mesoscale and Nanoscale Physics · Physics 2021-07-27 Yu Cui , Xiao-Yi Liu , Shi-Yuan Ji , Yong Sun , Jia-Pei Deng , Xu-Fei Ma , Zhi-Qing Li , Zi-Wu Wang

Non-Markovian and non-equilibrium phonon effects are believed to be key ingredients in the energy transfer in photosynthetic complexes, especially in complexes which exhibit a regime of intermediate exciton-phonon coupling. In this work, we…

Quantum Physics · Physics 2011-07-08 Patrick Rebentrost , Alán Aspuru-Guzik

We investigate electron transfer processes in donor-acceptor systems with a coupling of the electronic degrees of freedom to a common bosonic bath. The model allows to study many-particle effects and the influence of the local Coulomb…

Strongly Correlated Electrons · Physics 2007-05-23 Sabine Tornow , Ning-Hua Tong , Ralf Bulla

Selectivity of olfactory receptor neuron (ORN) is compared with that of its receptor proteins (R) with fluctuations of odor binding-releasing process taken into account. The binding-releasing process is modeled as N Bernoulli trials, where…

Biological Physics · Physics 2022-07-20 A. Vidybida

A time-dependent approach is used to explore inelastic effects during electron transport through few-level systems. We study a tight-binding chain with one and two sites connected to vibrations. This simple but transparent model gives…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 S. Monturet , N. Lorente

The standard model for molecular recognition of an odorant is that receptor sites discriminate by molecular geometry as evidenced that two chiral molecules may smell very differently. However, recent studies of isotopically labeled…

Biological Physics · Physics 2015-06-05 Eric R. Bittner , Adrian Madalan , Arkadiuz Czader , Gregg Roman

It has been discovered before (arXiv:2306.07676) that for the selectivity gain due to fluctuations in the process of primary odor reception by olfactory receptor neuron (ORN) there exists an optimal concentration of odors at which increased…

Neurons and Cognition · Quantitative Biology 2025-04-15 A. K. Vidybida

In this paper, we propose a novel concept for engineered molecular communication (MC) systems inspired by animal olfaction. We focus on a multi-user scenario where several transmitters wish to communicate with a central receiver. We assume…

Information Theory · Computer Science 2022-03-09 Vahid Jamali , Helene M. Loos , Andrea Buettner , Robert Schober , H. Vincent Poor

Biological systems are known to communicate by diffusing chemical signals in the surrounding medium. However, most of the recent literature has neglected the electron transfer mechanism occurring amongst living cells, and its role in…

Emerging Technologies · Computer Science 2015-02-23 Nicolo Michelusi , Sahand Pirbadian , Mohamed Y. El-Naggar , Urbashi Mitra

Molecular communication (MC) has promising potential and a wide range of applications. However, odor-based communication which is common in nature, has not been sufficiently examined within the context of MC, yet. In this paper, we…

Emerging Technologies · Computer Science 2024-11-01 Fatih E. Bilgen , Ahmet B. Kilic , Ozgur B. Akan

We develop a theory of heat transfer induced by thermal charge fluctuations in two-dimensional electron double layers. We consider pristine systems comprised of identical layers, and focus on the regime of sufficiently high temperatures and…

Mesoscale and Nanoscale Physics · Physics 2023-08-21 Dmitry Zverevich , A. V. Andreev , Alex Levchenko

The electrons and phonons in metal films after ultra-short pulse laser heating are in highly non-equilibrium states not only between the electron sub-system and the phonon sub-system but also within the electron sub-system. An…

Materials Science · Physics 2014-08-05 Jun Zhou , Nianbei Li , Ronggui Yang
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