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We present an interaction scheme that exhibits a dynamical consequence of virtual photons carried by a vacuum-field dressed two-level atom in the ultrastrong coupling regime. We show that, with the aid of an external driving field, virtual…

Quantum Physics · Physics 2013-04-24 C. K. Law

We consider the dynamics of atomic and field coherent states in the non-resonant Dicke model. At weak coupling an initial product state evolves into a superposition of multiple field coherent states that are correlated with the atomic…

Quantum Physics · Physics 2012-04-25 A. Alvermann , L. Bakemeier , H. Fehske

We investigate the time evolution of atomic population in a two-level atom driven by a monochromatic radiation field, taking spontaneous emission into account. The Rabi oscillation exhibits amplitude damping in time caused by spontaneous…

Quantum Physics · Physics 2009-11-13 Sun Kyung Lee , Hai-Woong Lee

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

When an atom is strongly coupled to a cavity, the two systems can exchange a single photon through a coherent Rabi oscillation. This process enables precise quantum-state engineering and manipulation of atoms and photons in a cavity, which…

A two-level quantum system coherently driven by a resonant electromagnetic field oscillates sinusoidally between the two levels at frequency $\Omega$ which is proportional to the field amplitude [1]. This phenomenon, known as the Rabi…

Atomic Physics · Physics 2015-06-05 Y. O. Dudin , L. Li , F. Bariani , A. Kuzmich

We present a full quantum theory for the dissipative dynamics of an optical cavity in the ultra-strong light-matter coupling regime, in which the vacuum Rabi frequency is comparable to the electronic transition frequency and the…

Other Condensed Matter · Physics 2009-11-11 Cristiano Ciuti , Iacopo Carusotto

We determine the Rabi oscillations for coherent and squeezed coherent states via one- and two-photon atomic transitions in two- and three-level atoms, respectively. The effect of squeezing coherent states is to reduce the large number of…

Quantum Physics · Physics 2020-01-07 Moorad Alexanian

We report experimental measurements of the transmission spectrum of an optical cavity coupled with cold Rb atoms. We observe the multi-atom vacuum Rabi splitting of a composite cavity and atom system. When a coupling field is applied to the…

Optics · Physics 2009-11-13 Gessler Hernandez , Jiepeng Zhang , Yifu Zhu

The well-known laser-induced Rabi oscillations of a two-level atom are shown to be suppressed under certain conditions when the atom is entering a laser-illuminated region. For temporal Rabi oscillations the effect has two regimes:…

Quantum Physics · Physics 2009-11-10 B. Navarro , I. L. Egusquiza , J. G. Muga , G. C. Hegerfeldt

We consider the near-resonant interaction between a single atom and a focused light mode, where a single atom localized at the focus of a lens can scatter a significant fraction of light. Complementary to previous experiments on extinction…

The modified radiative and non-radiative states due to the weak coupling of an emitter with other resonant objects (Purcell effect), can be recast as a quantum interference of the paths of the photon that define the classical scattering and…

Optics · Physics 2022-10-05 Kritika Jain , Murugesan Venkatapathi

Vacuum Rabi splitting relies on symmetrical splitting of the common resonance frequency of atoms and the cavity in which the atoms reside. In this work, we argue that vacuum Rabi splitting is a manifestation of virtual light-matter two-mode…

Quantum Physics · Physics 2024-03-20 Karol Gietka

We consider a generalized version of the Rabi model that includes a nonlinear, dispersive-type atom-field interaction in addition to the usual linear dipole coupling, as well as cavity dissipation. An effective system of this sort arises,…

Quantum Physics · Physics 2014-08-27 Arne L. Grimsmo , Scott Parkins

The realization of the strong coupling regime is requisite for implementing quantum information tasks. Here, a method for enhancing the atom-field coupling in highly dissipative coupled cavities is proposed. By introducing parametric…

Quantum Physics · Physics 2019-08-22 Yan Wang , Jin-Lei Wu , Jie Song , Yong-Yuan Jiang , Zi-Jing Zhang , Yan Xia

In nanomechanical QED system, consisting of a charge qubit and a nonlinear nanomechanical resonator, we study the temporal behavior of Rabi oscillation in the nonlinear Jaynes-Cummings model. Using microscopic master equation approach, we…

Quantum Physics · Physics 2016-04-20 X. Xiao , M. Y. Zhao , S. M. Yu , Y. B. Gao

We consider the resonant van der Waals interaction between two correlated identical two-level atoms (at least one of which being excited) within the framework of macroscopic cavity quantum electrodynamics in linear, dispersing and absorbing…

Quantum Physics · Physics 2018-05-09 Saeideh Esfandiarpour , Robert Bennett , Hassan Safari , Stefan Yoshi Buhmann

We study numerically the dynamics of the Rabi Hamiltonian, describing the interaction of a single cavity mode and a two-level atom without the rotating wave approximation, subjected to damping and dephasing reservoirs included via usual…

Quantum Physics · Physics 2010-08-16 T. Werlang , A. V. Dodonov , E. I. Duzzioni , C. J. Villas-Boas

We studied a system of atomic Bose-Einstein condensate coupled to a ring cavity within the mean-field theory. Due to the interaction between atoms and light field, the atoms can be self-trapped. This is verified with both variational and…

Quantum Gases · Physics 2020-12-10 Jieli Qin , Lu Zhou

Squeezed states of harmonic oscillators are a central resource for continuous-variable quantum sensing, computation and communication. Here we propose a method for the generation of very good approximations to highly squeezed vacuum states…

Quantum Physics · Physics 2021-04-21 Jacob Hastrup , Kimin Park , Radim Filip , Ulrik L. Andersen