mott insulators
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2022 ◽  
Vol 543 ◽  
pp. 168616
Author(s):  
Wojciech Brzezicki ◽  
Adolfo Avella ◽  
Mario Cuoco ◽  
Andrzej M. Oleś
Keyword(s):  

2022 ◽  
Vol 5 (1) ◽  
Author(s):  
Yuta Murakami ◽  
Shintaro Takayoshi ◽  
Tatsuya Kaneko ◽  
Zhiyuan Sun ◽  
Denis Golež ◽  
...  

AbstractMany experiments show that strong excitations of correlated quantum materials can cause non-thermal phases without equilibrium analogues. Understanding the origin and properties of these nonequilibrium states has been challenging due to the limitations of theoretical methods for nonequilibrium strongly correlated systems. In this work, we introduce a generalized Gibbs ensemble description that enables a systematic analysis of the long-time behavior of photo-doped states in Mott insulators based on equilibrium methods. We demonstrate the power of the method by mapping out the nonequilibrium phase diagram of the one-dimensional extended Hubbard model, which features η-pairing and charge density wave phases in a wide photo-doping range. We furthermore clarify that the peculiar kinematics of photo-doped carriers, and the interaction between them, play an essential role in the formation of these non-thermal phases. Our results establish a new path for the systematic analysis of nonequilibrium strongly correlated systems.


AIP Advances ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 125226
Author(s):  
Shu-tong Wang ◽  
Yiou Zhang ◽  
J. B. Marston ◽  
Gang Xiao
Keyword(s):  

2021 ◽  
Vol 104 (16) ◽  
Author(s):  
Guo-Qing Zhang ◽  
Ling-Zhi Tang ◽  
Ling-Feng Zhang ◽  
Dan-Wei Zhang ◽  
Shi-Liang Zhu

2021 ◽  
Vol 104 (14) ◽  
Author(s):  
Yang Yang ◽  
Mengqun Li ◽  
Ioannis Rousochatzakis ◽  
Natalia B. Perkins

Science ◽  
2021 ◽  
Vol 374 (6563) ◽  
pp. 82-86
Author(s):  
Joannis Koepsell ◽  
Dominik Bourgund ◽  
Pimonpan Sompet ◽  
Sarah Hirthe ◽  
Annabelle Bohrdt ◽  
...  
Keyword(s):  

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Christopher Orthodoxou ◽  
Amelle Zaïr ◽  
George H. Booth

AbstractWith a combination of numerical methods, including quantum Monte Carlo, exact diagonalization, and a simplified dynamical mean-field model, we consider the attosecond charge dynamics of electrons induced by strong-field laser pulses in two-dimensional Mott insulators. The necessity to go beyond single-particle approaches in these strongly correlated systems has made the simulation of two-dimensional extended materials challenging, and we contrast their resulting high-harmonic emission with more widely studied one-dimensional analogues. As well as considering the photo-induced breakdown of the Mott insulating state and magnetic order, we also resolve the time and ultra-high-frequency domains of emission, which are used to characterize both the photo-transition, and the sub-cycle structure of the electron dynamics. This extends simulation capabilities and understanding of the photo-melting of these Mott insulators in two dimensions, at the frontier of attosecond non-equilibrium science of correlated materials.


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