Collective elementary excitations of Bose–Einstein condensed magnetoexcitons interacting with strongly correlated electron–hole plasma

2006 ◽  
Vol 378-380 ◽  
pp. 1041-1042
Author(s):  
Vitalie Boţan ◽  
Sveatoslav A. Moskalenko ◽  
Börje Johansson
Keyword(s):  
Strongly Correlated ◽  
Electron Hole ◽  
Strongly Correlated Electron ◽  
Elementary Excitations ◽  
Hole Plasma ◽  
Correlated Electron ◽  
Electron Hole Plasma ◽  
Bose Einstein

scholarly journals Coulomb-correlated electron-hole plasma and gain in a quantum-wire laser of high uniformity

2003 ◽  
Vol 67 (4) ◽  
Author(s):  
Hidefumi Akiyama ◽  
Loren N. Pfeiffer ◽  
Masahiro Yoshita ◽  
Aron Pinczuk ◽  
Peter B. Littlewood ◽  
...  
Keyword(s):  
Quantum Wire ◽  
Electron Hole ◽  
Hole Plasma ◽  
Correlated Electron ◽  
High Uniformity ◽  
Electron Hole Plasma

scholarly journals Correlated electron–hole plasma in organometal perovskites

2014 ◽  
Vol 5 (1) ◽  
Author(s):  
Michele Saba ◽  
Michele Cadelano ◽  
Daniela Marongiu ◽  
Feipeng Chen ◽  
Valerio Sarritzu ◽  
...  
Keyword(s):  
Electron Hole ◽  
Hole Plasma ◽  
Correlated Electron ◽  
Electron Hole Plasma

scholarly journals Exciton-driven antiferromagnetic metal in a correlated van der Waals insulator

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Carina A. Belvin ◽  
Edoardo Baldini ◽  
Ilkem Ozge Ozel ◽  
Dan Mao ◽  
Hoi Chun Po ◽  
...  
Keyword(s):  
Degrees Of Freedom ◽  
Van Der Waals ◽  
Metallic State ◽  
Strongly Correlated ◽  
Many Body ◽  
Electron Hole ◽  
Strongly Correlated Electron ◽  
Long Wavelength ◽  
Correlated Electron ◽  
Strongly Correlated Electron Materials

AbstractCollective excitations of bound electron-hole pairs—known as excitons—are ubiquitous in condensed matter, emerging in systems as diverse as band semiconductors, molecular crystals, and proteins. Recently, their existence in strongly correlated electron materials has attracted increasing interest due to the excitons’ unique coupling to spin and orbital degrees of freedom. The non-equilibrium driving of such dressed quasiparticles offers a promising platform for realizing unconventional many-body phenomena and phases beyond thermodynamic equilibrium. Here, we achieve this in the van der Waals correlated insulator NiPS3 by photoexciting its newly discovered spin–orbit-entangled excitons that arise from Zhang-Rice states. By monitoring the time evolution of the terahertz conductivity, we observe the coexistence of itinerant carriers produced by exciton dissociation and a long-wavelength antiferromagnetic magnon that coherently precesses in time. These results demonstrate the emergence of a transient metallic state that preserves long-range antiferromagnetism, a phase that cannot be reached by simply tuning the temperature. More broadly, our findings open an avenue toward the exciton-mediated optical manipulation of magnetism.

GROUND STATE INSTABILITY OF STRONGLY CORRELATED ELECTRONS

1992 ◽  
Vol 06 (16n17) ◽  
pp. 1063-1068
Author(s):  
A. FERRAZ ◽  
Y. OHMURA
Keyword(s):  
Ground State ◽  
Strongly Correlated Electrons ◽  
Electron System ◽  
Strongly Correlated ◽  
Coulomb Interactions ◽  
Electron Hole ◽  
Strongly Correlated Electron ◽  
Correlated Electron ◽  
Scattering Kernel ◽  
Electronic Ground

Summing up a special series of skeleton diagrams we show that in a strongly correlated electron fluid the proper irreducible electron-hole scattering kernel K is singular for sufficiently large Coulomb interactions. The instability of the electronic ground state is exhibited in the purely imaginary pole of K. This pole determines the decay rate of the unstable ground state and signals a phase transition of the whole electron system.

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