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We study a special two-atom entanglement case in assumed Cavity QED experiment in which only one atom effectively exchanges a single photon with a cavity mode. We compute diatom entanglement under position-dependent atomic resonant…

Quantum Physics · Physics 2009-09-29 Yan-Qing Guo , Hai-Jing Cao , He-Shan Song

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 investigate a superconducting circuit consisting of multiple capacitively-coupled charge qubits. The collective Rabi oscillation of qubits is numerically studied in detail by imitating environmental fluctuations according to the…

Quantum Physics · Physics 2018-09-06 Deshui Yu , Leong Chuan Kwek , Rainer Dumke

Isolation of a single atomic particle and monitoring its resonance fluorescence is a powerful tool for studies of quantum effects in radiation-matter interaction. Here we present observations of quantum dynamics of an isolated neutral atom…

Quantum Physics · Physics 2009-11-06 H. Schadwinkel , V. Gomer , U. Reiter , B. Ueberholz , D. Meschede

It is usually considered that the spectrum of an optical cavity coupled to an atomic medium does not exhibit a normal-mode splitting unless the system satisfies the strong coupling condition, meaning the Rabi frequency of the coherent…

Quantum Physics · Physics 2017-01-06 Y. -H. Lien , G. Barontini , M. Scheucher , M. Mergenthaler , J. Goldwin , E. A. Hinds

The problem of Rabi oscillations in a qubit coupled to a fluctuator and in contact with a heath bath is considered. A scheme is developed for taking into account both phase and energy relaxation in a phenomenological way, while taking full…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Y. M. Galperin , D. V. Shantsev , J. Bergli , B. L. Altshuler

We theoretically analyze exciton-photon oscillatory dynamics within a homogenous polariton gas in presence of energy detuning between the cavity and quantum well modes. Whereas pure Rabi oscillations consist of the particle exchange between…

Mesoscale and Nanoscale Physics · Physics 2015-11-17 Nina Voronova , Andrei Elistratov , Yurii Lozovik

We demonstrate coupling of magnetically trapped ultracold $^87$Rb ground state atoms to a coherently driven superconducting coplanar resonator on an integrated atom chip. We measure the microwave field strength in the cavity through…

Vibronic coupling effects usually manifest themselves in molecules and crystals rather than in an unbound atoms. We theoretically demonstrate the existence of vibronic states in a moving two-level atom exposed to a strong electromagnetic…

Quantum Physics · Physics 2020-10-28 Andrei Ivanov , Evgeniy Perlin

We propose a practical approach to manipulate the counter-rotating (CR) interactions in the quantum Rabi model by introducing a sinusoidal modulation to the transition frequency of the quantum two-level system in this model. By choosing…

Quantum Physics · Physics 2017-10-25 Jin-Feng Huang , Jie-Qiao Liao , Lin Tian , Le-Man Kuang

A natural atom placed into a cavity with time-dependent parameters can be parametrically excited due to the interaction with the quantized photon mode. One of the channels of such a process is the dynamical Lamb effect, induced by a…

Mesoscale and Nanoscale Physics · Physics 2015-06-17 D. S. Shapiro , A. A. Zhukov , W. V. Pogosov , Yu. E. Lozovik

We investigate Rabi oscillation of an atom ensemble in Gaussian spatial distribution. By using the ultrafast laser interaction with the cold atomic rubidium vapor spatially confined in a magneto-optical trap, the oscillatory behavior of the…

Atomic Physics · Physics 2016-06-09 Han-gyeol Lee , Hyosub Kim , Jaewook Ahn

We show that if the Rabi frequency is comparable to the Bohr frequency so that the rotating wave approximation is inappropriate, an extra oscillation is present with the Rabi oscillation. We discuss how the sensitivity of the degree of…

Quantum Physics · Physics 2007-05-23 M. S. Shahriar , Prabhakar Pradhan

Environmental influences on the dynamics of a coupled qubit-oscillator system are studied analytically. We investigate the case of a quasi-degenerate qubit within the ultra-strong coupling regime for which the qubit frequency is much…

Quantum Physics · Physics 2014-01-28 Shantanu Agarwal , Sayed M. Hashemi Rafsanjani , Joseph H. Eberly

In this thesis, we use classical, semi-classical and quantum-mechanical methods to simulate chemical reaction dynamics inside of an optical cavity. Within such a cavity, by selectively coupling vibrational modes of the reactants to the…

Chemical Physics · Physics 2024-02-08 Andrew C. Hunt

The Rabi Hamiltonian describes a single mode of electromagnetic radiation interacting with a two-level atom. Using the coupled cluster method, we investigate the time evolution of this system from an initially empty field mode and an…

Quantum Physics · Physics 2009-11-07 R. F. Bishop , C. Emary

We introduce multiplexed atom-cavity quantum electrodynamics with an atomic ensemble coupled to a single optical cavity mode. Multiple Raman dressing beams establish cavity-coupled spin-wave excitations with distinctive spatial profiles.…

Atomic Physics · Physics 2020-01-01 Kevin C. Cox , David H. Meyer , Zachary A. Castillo , Fredrik K. Fatemi , Paul D. Kunz

We explore the long-time dynamics of Rabi model in a driven-dissipative setting and show that, as the atom-cavity coupling strength becomes larger than the cavity frequency, a new time scale emerges. This time scale, much larger than the…

Quantum Physics · Physics 2017-03-22 Alexandre Le Boité , Myung-Joong Hwang , Martin B. Plenio

Herein, we propose an experimentally feasible scheme to show the quantum phase transition of the Jaynes-Cummings (JC) model by modulating the transition frequency of a two-level system in a quantum Rabi model with strong coupling. By tuning…

Quantum Physics · Physics 2023-11-27 Cheng Liu , Jin-Feng Huang

Using photoluminescence spectroscopy, we have investigated the nature of Rabi oscillation damping during active manipulation of excitonic qubits in self-assembled quantum dots. Rabi oscillations were recorded by varying the pulse amplitude…

Other Condensed Matter · Physics 2009-11-10 Q. Q. Wang , A. Muller , P. Bianucci , E. Rossi , Q. K. Xue , T. Takagahara , C. Piermarocchi , A. H. MacDonald , C. K. Shih
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