Results 11 to 20 of about 3,314 (119)

Merging van der Waals Materials and Optical Metasurfaces for Cavity Quantum Electrodynamics. [PDF]

Nanophotonics
Flat optical metasurfaces supporting quasi‐bound states in the continuum (qBIC) enable cavity‐like, high‐Q resonances in ultrathin nanostructures. This perspective explores the emergence of cavity quantum electrodynamics in qBIC metasurfaces, specifically those made from ultrathin van der Waals nanostructures, where cavities and emitters are seamlessly
Sortino L, Tittl A, Maier SA.
europepmc   +2 more sources

Coexistence of weak and strong coupling in a photonic molecule through dissipative coupling to a quantum dot. [PDF]

Nanophotonics
Abstract We study the emission from a molecular photonic cavity formed by two proximal photonic crystal defect cavities containing a small number (<3) of In(Ga)As quantum dots. Under strong excitation, we observe photoluminescence from the bonding and antibonding modes in agreement with ab initio numerical simulations.
Lichtmannecker S, Echeverri-Arteaga S, Kaniber M, Andrade Martelo IC, Ruiz-Rivas J, Reichert T, Reithmaier G, Ardelt PL, Bichler M, Zubizarreta Casalengua E, Gómez EA, Vinck-Posada H, Del Valle E, Müller K, Laussy FP, Finley JJ.   +15 more
europepmc   +2 more sources

Resonance theory of vibrational polariton chemistry at the normal incidence. [PDF]

Nanophotonics
Abstract We present a theory that explains the resonance effect of the vibrational strong coupling (VSC) modified reaction rate constant at the normal incidence of a Fabry–Pérot (FP) cavity. This analytic theory is based on a mechanistic hypothesis that cavity modes promote the transition from the ground state to the vibrational excited state of the ...
Ying W, Taylor MAD, Huo P.
europepmc   +2 more sources

Protecting, Enhancing and Reviving Entanglement

, 2012
We propose a strategies not only to protect but also to enhance and revive the entanglement in a double Jaynes-Cummings model. We show that such surprising features arises when Zeno-like measurements are performed during the dynamical ...
J. G. Oliveira, M. A. Nielsen, M. C. Nemes, R. Rossi   +3 more
core   +1 more source

Photon and spin dependence of the resonance lines shape in the strong coupling regime [PDF]

, 2012
We study the quantum dynamics of a spin ensemble coupled to cavity photons. Recently, related experimental results have been reported, showing the existence of the strong coupling regime in such systems. We study the eigenenergy distribution of the multi-
Bertaina, S., Chiorescu, I., De Raedt, H., Miyashita, S., Mori, T., Shirai, T.   +5 more
core   +4 more sources

Entanglement invariant for the double Jaynes-Cummings model

, 2007
We study entanglement dynamics between four qubits interacting through two isolated Jaynes-Cummings hamiltonians, via the entanglement measure based on the wedge product.
E. T. Jaynes, Gunnar Björk, H. Heydari, Isabel Sainz, M. Nielsen, T. Yu   +5 more
core   +1 more source

Electrical current and coupled electron-nuclear spin dynamics in double quantum dots

, 2013
We examine electronic transport in a spin-blockaded double quantum dot. We show that by tuning the strength of the spin-orbit interaction the current flowing through the double dot exhibits a dip at zero magnetic field or a peak at a magnetic field for ...
Giavaras, G., Lambert, Neill, Nori, Franco   +2 more
core   +1 more source

Two-photon Rabi-Hubbard and Jaynes-Cummings-Hubbard models: photon pair superradiance, Mott insulator and normal phases [PDF]

, 2019
We study the ground state phase diagrams of two-photon Dicke, the one-dimensional Jaynes-Cummings-Hubbard (JCH), and Rabi-Hubbard (RH) models using mean field, perturbation, quantum Monte Carlo (QMC), and density matrix renormalization group (DMRG ...
Batrouni, G. G., Cui, Shifeng, Grémaud, B., Guo, Wenan, Hébert, F., Rousseau, V. G.   +5 more
core   +3 more sources

Phase-controlled atom-photon entanglement in a three-level V-type atomic system via spontaneously generated coherence [PDF]

, 2011
We investigate the dynamical behavior of the atom-photon entanglement in a V-type three-level quantum system using the atomic reduced entropy. It is shown that an atom and photons are entangled at the steady-state; however disentanglement can also be ...
Abazari, Mohammad, Mahmoudi, Mohammad, Mortezapour, Ali, Sahrai, Mostafa   +3 more
core   +2 more sources

Sudden Death of Entanglement of Two Jaynes-Cummings Atoms

, 2006
We investigate entanglement dynamics of two isolated atoms, each in its own Jaynes-Cummings cavity. We show analytically that initial entanglement has an interesting subsequent time evolution, including the so-called sudden death effect.Comment: 3 pages,
Diosi L, J H Eberly, Jaynes E T, Joos E, Muhammed Yönaç, Ting Yu, Yu T Eberly J H, Yu T Eberly J H, Yönac M Yu T Eberly J H, Zurek W H   +9 more
core   +1 more source