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The coupling of a two-level system with an electromagnetic field, whose fully quantized version is the quantum Rabi model, is among the central topics of quantum physics. When the coupling strength becomes large enough that the field mode…

Quantum Physics · Physics 2023-02-24 Johannes Koch , Geram R. Hunanyan , Till Ockenfels , Enrique Rico , Enrique Solano , Martin Weitz

We propose a method that enables strong, coherent coupling between individual optical emitters and electromagnetic excitations in conducting nano-structures. The excitations are optical plasmons that can be localized to sub-wavelength…

Quantum Physics · Physics 2009-11-13 D. E. Chang , A. S. Sorensen , P. R. Hemmer , M. D. Lukin

We present an experimental demonstration of strong coupling between a surface plasmon propagating on a planar silver substrate, and the lowest excited state of CdSe nanocrystals. Variable-angle spectroscopic ellipsometry measurements…

Materials Science · Physics 2009-12-16 D. E. Gómez , K. C. Vernon , T. J. Davis , T. L. Nguyen , P. Mulvaney

We demonstrate theoretically the parametric oscillator behavior of a two-level quantum system with broken inversion symmetry exposed to a strong electromagnetic field. A multitude of resonance frequencies and additional harmonics in the…

Quantum Physics · Physics 2009-01-12 O. V. Kibis , G. Ya. Slepyan , S. A. Maksimenko , A. Hoffmann

Propagation of light through dielectrics lies at the heart of optics. However, this ubiquitous process is commonly described using phenomenological dielectric function $\varepsilon$ and magnetic permeability $\mu$, i.e. without addressing…

Quantum Physics · Physics 2016-11-30 Harald R. Haakh , Sanli Faez , Vahid Sandoghdar

Recent progress in experimental studies of low-dimensional systems with strong spin-orbit coupling poses a question on the effect of this coupling on the energy spectrum of electrons in semiconductor nanostructures. It is shown in the paper…

Mesoscale and Nanoscale Physics · Physics 2015-06-11 Emmanuel I. Rashba

We theoretically investigate the deflection-induced coupling of an electron spin to vibrational motion due to spin-orbit coupling in suspended carbon nanotube quantum dots. Our estimates indicate that, with current capabilities, a quantum…

Mesoscale and Nanoscale Physics · Physics 2012-06-05 András Pályi , P. R. Struck , Mark Rudner , Karsten Flensberg , Guido Burkard

We investigate the conditions yielding plasmon-exciton strong coupling at the single emitter level in the gap between two metal nanoparticles. A quasi-analytical transformation optics approach is developed that makes possible a thorough…

Mesoscale and Nanoscale Physics · Physics 2016-09-07 Rui-Qi Li , D. Hernangómez-Pérez , F. J. García-Vidal , A. I. Fernández-Domínguez

We study the strong coupling between the molecular excited state and the plasmonic modes of silver hole arrays with a resonant frequency very close to the asymptotic line of the plasmonic dispersion relation, at the nonlinear regime. We…

Mesoscale and Nanoscale Physics · Physics 2017-01-26 Lihi Efremushkin , Maxim Sukharev , Adi Salomon

Quantum plasmonics extends cavity quantum electrodynamics (cQED) concepts to the nanoscale, taking benefit from the strongly subwavelength confinement of the plasmon modes supported by metal nanostructures. In this work, we describe in…

Quantum Physics · Physics 2022-09-15 H. Varguet , A. Diaz-Valles , S. Guérin , H. R. Jauslin , G. Colas des Francs

The demonstration of enhanced spontaneous emission of nanoscaled optical emitters near metallic nanoparticles and the recent realization of a nanolaser based on surface plasmon amplification by stimulated emission of radiation (spaser)…

Quantum Physics · Physics 2010-03-12 S. Savasta , R. Saja , A. Ridolfo , O. Di Stefano , P. Denti , F. Borghese

The familiar Rabi model, comprising a two-level system coupled to a quantum harmonic oscillator, continues to produce rich and surprising physics when the coupling strength becomes comparable to the individual subsystem frequencies. We…

Quantum Physics · Physics 2014-02-26 E. K. Irish , J. Gea-Banacloche

Cavity-enhanced radiation pressure coupling between optical and mechanical degrees of freedom allows quantum-limited position measurements and gives rise to dynamical backaction enabling amplification and cooling of mechanical motion. Here…

We considered one-dimensional chain of the two-level quantum systems coupled via tunneling. The chain is driven by the superposition of dc and ac fields in the strong coupling regime. Based on the fundamental principles of electrodynamics…

Quantum Physics · Physics 2017-11-01 Ilay Levie , Rafael Kastner , Gregory Slepyan

We study spatial coherence properties of a system composed of periodic silver nanoparticle arrays covered with a fluorescent organic molecule (DiD) film. The evolution of spatial coherence of this composite structure from the weak to the…

Nanophotonic interfaces between single emitters and light promise to enable new quantum optical technologies. Here, we use a combination of finite element simulations and analytic quantum theory to investigate the interaction of various…

The optical emission spectrum of a quantum dot in strong coupling with the single mode of a microcavity is obtained in the nonlinear regime. We study how exciton-exciton interactions alter the emission spectrum of the system, bringing the…

Mesoscale and Nanoscale Physics · Physics 2009-07-09 E. del Valle , F. P. Laussy , F. M. Souza , I. A. Shelykh

Two coupled-cavity systems, or "photonic dimers", are efficient test-beds for both fundamental optics -the realization of quantum correlated states, Josephson physics, and so forth-, and applications such as optical flip-flop memories. In…

We study coherent transport in a system of a periodic linear chain of quantum dots placed between two parallel quantum wires. We show that resonant-tunneling conductance between the wires exhibits a Rabi splitting of the resonance peak as a…

Mesoscale and Nanoscale Physics · Physics 2019-04-15 L. S. Petrosyan , T. V. Shahbazyan

The interaction between excited states of a molecule and excited states of metal nanostructure (e.g. plasmons) leads to hybrid states with modified optical properties. When plasmon resonance is swept through molecular transition frequency…

Chemical Physics · Physics 2022-05-04 Monosij Mondal , Maicol A. Ochoa , Maxim Sukharev , Abraham Nitzan