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We consider theoretically the dynamics of electric currents optically injected in carbon nanotubes. Although the plasma oscillations are not seen in these systems, the main effect on the carrier's motion is due to strongly nonuniform…

Mesoscale and Nanoscale Physics · Physics 2014-11-04 L. L. Bonilla , M. Alvaro , M. Carretero , E. Ya. Sherman

Light-induced nonadiabatic effects can arise from the interaction of a molecule with the quantized electromagnetic field of a Fabry--P\'erot or plasmonic nanocavity. In this context, the quantized radiation field mixes the vibrational,…

Atomic and Molecular Clusters · Physics 2025-03-17 Krisztián Szabó , Csaba Fábri , Gábor J. Halász , Ágnes Vibók

A formalism for studying spontaneous decay of an excited two-level atom in the presence of dispersing and absorbing dielectric bodies is developed. An integral equation, which is suitable for numerical solution, is derived for the atomic…

Quantum Physics · Physics 2009-11-06 Ho Trung Dung , Ludwig Knoll , Dirk-Gunnar Welsch

We investigate the quantum optical properties of a single photon emitter coupled to a finite-size metal nanoparticle using a photon Green function technique that rigorously quantizes the electromagnetic fields. We first obtain pronounced…

Mesoscale and Nanoscale Physics · Physics 2012-02-07 C. Van Vlack , Philip Trøst Kristensen , S. Hughes

The self-organizing properties of nematic liquid crystals (LC) can be used to template carbon nanotubes (CNTs) on a macroscopic dimension. The nematic director field, coupled to the dispersed CNT long-axis, enables controlled director…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 Rajratan Basu , Germano S. Iannacchione

We study the modification of the atomic spontaneous emission rate, i.e. Purcell effect, of $^{87}$Rb in the vicinity of an optical nanofiber ($\sim$500 nm diameter). We observe enhancement and inhibition of the atomic decay rate depending…

When an atom strongly couples to a cavity, it can undergo coherent vacuum Rabi oscillations. Controlling these oscillatory dynamics quickly relative to the vacuum Rabi frequency enables remarkable capabilities such as Fock state generation…

Optics · Physics 2014-10-31 Ranojoy Bose , Tao Cai , Kaushik Roy Choudhury , Glenn S. Solomon , Edo Waks

Quantum optics with giant atoms provides a new approach for implementing optical memory devices at the atomic scale. Here, we theoretically study the relaxation dynamics of a single driven three-level atom interacting with a one-dimensional…

Quantum Physics · Physics 2024-05-31 Yang ya , Sun ge , Li jing , Lu jing , Zhou lan

The spontaneous decay of an excited atom by photon emission is one of the most common and elementary physical process present in nature and in laboratories. The decay is random in time with constant probability density, as it can be…

Quantum Physics · Physics 2025-11-25 Marcello Baldo

The dynamics of a system composed of two coupled optical cavities, each containing a single two-level atom, is studied over a wide range of detuning and coupling values. A description of the field in terms of delocalized modes reveals that…

Quantum Physics · Physics 2009-11-13 C. D. Ogden , E. K. Irish , M. S. Kim

Quantum emitters near the surface of silver nanoparticles undergo Rabi oscillations in electronic population dynamics due to strong coupling with near-field multipole modes that are not radiative. Low-frequency nanoparticle dipole modes are…

Quantum Physics · Physics 2026-03-19 Athul S. Rema , Adrián E. Rubio López , Felipe Herrera

Probing quantum dynamics in the strong-field regime is critical for advancing our understanding of controlled quantum systems and developing robust quantum technologies. In this work, we experimentally investigate the dynamics of a trapped…

Spontaneous decay of an excited atomic state is a fundamental process that originates from the interaction between matter and vacuum modes of the electromagnetic field. The rate of decay can thus be engineered by modifying the density of…

High pressure Raman experiments were performed on bundled double wall carbon nanotubes (DWCNTs). We observe peculiar regularity in the strength of the inner-outer tube (intratube) interaction, which is attributed to the interplay between…

Materials Science · Physics 2007-05-23 J. Arvanitidis , D. Christofilos , K. Papagelis , T. Takenobu , Y. Iwasa , H. Kataura , S. Ves , G. A. Kourouklis

In this article we explore the dynamics of many-body atomic systems symmetrically coupled to a single Lorentzian photonic cavity. Our study reveals interesting dynamical characteristics including non-zero steady states, superradiant decay,…

Quantum Physics · Physics 2022-11-17 Adam Burgess , Marian Florescu

We report time-domain observation of vacuum Rabi oscillations in a single quantum dot strongly coupled to a nanocavity under incoherent optical carrier injection. We realize a photonic crystal nanocavity with a very high quality factor of…

Quantum Physics · Physics 2018-09-05 K. Kuruma , Y. Ota , M. Kakuda , S. Iwamoto , Y. Arakawa

We study non-Markovian dynamics of a two level atom using pseudomode method. Because of the memory effect of non-Markovian dynamics, the atom receives back information and excited energy from the reservoir at a later time, which causes more…

Quantum Physics · Physics 2017-01-27 Yuta Ohyama , Yasuhiro Tokura

On the level of single atoms and photons, the coupling between atoms and the electromagnetic field is typically very weak. By employing a cavity to confine the field, the strength of this interaction can be increased many orders of…

Mesoscale and Nanoscale Physics · Physics 2009-02-02 Lev S. Bishop , J. M. Chow , Jens Koch , A. A. Houck , M. H. Devoret , E. Thuneberg , S. M. Girvin , R. J. Schoelkopf

The self-assembly mechanism of one-end-open carbon nanotubes (CNTs) suspended in an aqueous solution was studied by molecular dynamics simulations. It was shown that two one-end-open CNTs with different diameters can coaxially self-assemble…

Mesoscale and Nanoscale Physics · Physics 2017-07-31 Hang Xiao , Xiaoyang Shi , Xi Chen

Ability to encapsulate molecules is one of the outstanding features of nanotubes. The encapsulation alters physical and chemical properties of both nanotubes and guest species. The latter normally form a separate phase, exhibiting…

Materials Science · Physics 2014-07-23 Vitaly Chaban , Oleg Prezhdo