scholarly journals Model of Two-Dimensional Quantum Gravity in the Strong Coupling Regime

1995 ◽  
Vol 74 (11) ◽  
pp. 1900-1903 ◽  
Author(s):  
J. Gamboa
Keyword(s):  
Quantum Gravity ◽  
Strong Coupling ◽  
Strong Coupling Regime ◽  
Two Dimensional

scholarly journals A note on the strong coupling regime of two-dimensional quantum gravity

1991 ◽  
Vol 253 (3-4) ◽  
pp. 297-300
Author(s):  
G. Bonacina ◽  
A. Gamba ◽  
M. Martellini
Keyword(s):  
Quantum Gravity ◽  
Strong Coupling ◽  
Strong Coupling Regime ◽  
Two Dimensional

TWO ELECTRONS IN A HONEYCOMB LATTICE

2007 ◽  
Vol 21 (07) ◽  
pp. 391-398
Author(s):  
SAURABH BASU ◽  
C. Y. KADOLKAR ◽  
NEENA GOVEAS
Keyword(s):  
Strong Coupling ◽  
Thermodynamic Limit ◽  
Exchange Coupling ◽  
Equations Of Motion ◽  
Finite Size ◽  
Binding Energies ◽  
Honeycomb Lattice ◽  
Strong Coupling Regime ◽  
Two Dimensional ◽  
Set Up

The formation of bound pair of electrons is studied using a t–J–U model on a two-dimensional honeycomb lattice for zero electron density. We set up the equations of motion (EOM) for two electrons in a two-sublattice basis and hence solve for the critical exchange coupling necessary to form a pair on a finite size lattice. The results extrapolated to the thermodynamic limit (N → ∞) and in the strong coupling regime (U / t → ∞) identifies Jc / t = 2. Calculation of binding energies at J = Jc provide support for the above result.

Strong Coupling: Polariton Bose Condensation

2017 ◽  
Author(s):  
Alexey V. Kavokin ◽  
Jeremy J. Baumberg ◽  
Guillaume Malpuech ◽  
Fabrice P. Laussy
Keyword(s):  
Strong Coupling ◽  
Room Temperature ◽  
Elevated Temperatures ◽  
Dissipative System ◽  
Bose Condensation ◽  
Einstein Condensation ◽  
Strong Coupling Regime ◽  
Stimulated Scattering ◽  
Exciton Polaritons ◽  
Bose Einstein

In this Chapter we address the physics of Bose-Einstein condensation and its implications to a driven-dissipative system such as the polariton laser. We discuss the dynamics of exciton-polaritons non-resonantly pumped within a microcavity in the strong coupling regime. It is shown how the stimulated scattering of exciton-polaritons leads to formation of bosonic condensates that may be stable at elevated temperatures, including room temperature.

Strong coupling: resonant effects

2017 ◽  
Author(s):  
Alexey V. Kavokin ◽  
Jeremy J. Baumberg ◽  
Guillaume Malpuech ◽  
Fabrice P. Laussy
Keyword(s):  
Strong Coupling ◽  
Experimental Studies ◽  
Strong Coupling Regime ◽  
Theoretical Studies ◽  
Stimulated Scattering ◽  
Quantum Theories ◽  
Pump Probe ◽  
Exciton Polaritons ◽  
Linear Optical Properties ◽  
Experimental And Theoretical Studies

This chapter presents experimental studies performed on planar semiconductor microcavities in the strong-coupling regime. The first section reviews linear experiments performed in the 1990s that evidence the linear optical properties of cavity exciton-polaritons. The chapter is then focused on experimental and theoretical studies of resonantly excited microcavity emission. We mainly describe experimental configuations in which stimulated scattering was observed due to formation of a dynamical condensate of polaritons. Pump-probe and cw experiments are described in addition. Dressing of the polariton dispersion and bistability of the polariton system due to inter-condensate interactions are discussed. The semiclassical and the quantum theories of these effects are presented and their results analysed. The potential for realization of devices is also discussed.

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