scholarly journals Role of generic scale invariance in a Mott transition from a U(1) spin-liquid insulator to a Landau Fermi-liquid metal

2021 ◽  
pp. 168462
Author(s):  
Jinho Yang ◽  
Iksu Jang ◽  
Jae-Ho Han ◽  
Ki-Seok Kim
2005 ◽  
Vol 95 (17) ◽  
Author(s):  
Y. Kurosaki ◽  
Y. Shimizu ◽  
K. Miyagawa ◽  
K. Kanoda ◽  
G. Saito

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Andrej Pustogow ◽  
Yohei Saito ◽  
Anja Löhle ◽  
Miriam Sanz Alonso ◽  
Atsushi Kawamoto ◽  
...  

AbstractLandau suggested that the low-temperature properties of metals can be understood in terms of long-lived quasiparticles with all complex interactions included in Fermi-liquid parameters, such as the effective mass m⋆. Despite its wide applicability, electronic transport in bad or strange metals and unconventional superconductors is controversially discussed towards a possible collapse of the quasiparticle concept. Here we explore the electrodynamic response of correlated metals at half filling for varying correlation strength upon approaching a Mott insulator. We reveal persistent Fermi-liquid behavior with pronounced quadratic dependences of the optical scattering rate on temperature and frequency, along with a puzzling elastic contribution to relaxation. The strong increase of the resistivity beyond the Ioffe–Regel–Mott limit is accompanied by a ‘displaced Drude peak’ in the optical conductivity. Our results, supported by a theoretical model for the optical response, demonstrate the emergence of a bad metal from resilient quasiparticles that are subject to dynamical localization and dissolve near the Mott transition.


2006 ◽  
Vol 128 (4) ◽  
pp. 656-662 ◽  
Author(s):  
Seok-Ki Choi ◽  
Seong-O Kim

A numerical study of the evaluation of turbulence models for predicting the thermal stratification phenomenon is presented. The tested models are the elliptic blending turbulence model (EBM), the two-layer model, the shear stress transport model (SST), and the elliptic relaxation model (V2-f). These four turbulence models are applied to the prediction of a thermal stratification in an upper plenum of a liquid metal reactor experimented at the Japan Nuclear Cooperation (JNC). The EBM and V2-f models predict properly the steep gradient of the temperature at the interface of the cold and hot regions that is observed in the experimental data, and the EBM and V2-f models have the capability of predicting the temporal oscillation of the temperature. The two-layer and SST models predict the diffusive temperature gradient at the interface of a thermal stratification and fail to predict a temporal oscillation of the temperature. In general, the EBM predicts best the thermal stratification phenomenon in the upper plenum of the liquid metal reactor.


Science ◽  
2011 ◽  
Vol 333 (6050) ◽  
pp. 1730-1733 ◽  
Author(s):  
J. Luo ◽  
H. Cheng ◽  
K. M. Asl ◽  
C. J. Kiely ◽  
M. P. Harmer

Author(s):  
Eerik Mantere ◽  
Nina Savela ◽  
Atte Oksanen

Smartphone use has changed patterns of online and offline interaction. Phubbing (i.e., looking at one’s phone instead of paying attention to others) is an increasingly recognized phenomenon in offline interaction. We examined whether people who phub are more likely to have lower social intelligence, whether phubbing is considered more annoying than being ignored due to reading a magazine, and if people describe smartphones and magazines differently as sources of social distraction. We collected two survey samples (N = 112, N = 108) for a cartoon-based role-playing experiment (the Bystander Inaccessibility Experiment) in which a smartphone user and a person reading a magazine ignored the respondents’ conversational initiatives. Annoyance in each scenario was measured, and written accounts were collected on why the respondents rated the scenarios the way they did. Other measures used included the Generic Scale of Phubbing, Generic Scale of Being Phubbed, and Tromsø Social Intelligence Scale. The results showed that participants in both samples were more annoyed by phubbing than by being ignored due to reading a magazine. Linear regression analyses showed that phubbing was associated with lower social intelligence, even after adjusting for confounding factors. The annoyingness of phubbing was explained with negative attitudes toward smartphones, which were assumed to be used for useless endeavors, while magazines were more appreciated and seen as more cultivating. The role of bystanders’ epistemic access to the smartphone user’s activities is discussed.


2019 ◽  
Vol 99 (24) ◽  
Author(s):  
Friedrich Krien ◽  
Erik G. C. P. van Loon ◽  
Mikhail I. Katsnelson ◽  
Alexander I. Lichtenstein ◽  
Massimo Capone

2019 ◽  
Vol 99 (7) ◽  
Author(s):  
Ilkka Kylänpää ◽  
Ye Luo ◽  
Olle Heinonen ◽  
Paul R. C. Kent ◽  
Jaron T. Krogel

2000 ◽  
Vol 284-288 ◽  
pp. 1563-1564
Author(s):  
V.G Peschansky ◽  
G Ivanovski ◽  
O.V Kirichenko ◽  
D Krstovska

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