Fermionic entropy in BTZ space time

1999 ◽  
Vol 42 (4) ◽  
pp. 438-443 ◽  
Author(s):  
Yougen Shen ◽  
Daming Chen
Keyword(s):  
Space Time ◽  
Fermionic Entropy

QUANTUM STATISTICAL ENTROPY OF KERR–DE SITTER BLACK HOLE

2004 ◽  
Vol 01 (03) ◽  
pp. 159-166
Author(s):  
TIAN-RAN DING ◽  
REN ZHAO
Keyword(s):  
Black Hole ◽  
Thermal Equilibrium ◽  
Space Time ◽  
The Other ◽  
De Sitter ◽  
Statistical Entropy ◽  
Higher Dimensional ◽  
Quantum Statistical ◽  
Fermionic Entropy ◽  
Non Equilibrium

By using the method of the membrane model, we derive the entropy of the black hole in non-thermal equilibrium states, and discuss the (n+2)-dimensional de Sitter space-time. We show that the entropy of the black hole in the non-equilibrium state comprises two parts: one is the entropy corresponding to the black hole horizon; the other is the entropy corresponding to the cosmic horizon. Furthermore, we show that the entropy is the inherent property of the black hole and is irrelevant to the radiation field outside the horizon. This deepens our recognition of the relation between the entropy of the black hole and the area of the horizon. We provide a new way by which the bosonic and fermionic entropy of the black hole in higher dimensional non-equilibrium space-time is studied.

Space, Time and Einstein

2002 ◽  
Author(s):  
J. B. Kennedy
Keyword(s):  
Space Time

Spinors and Space-Time

1984 ◽  
Author(s):  
Roger Penrose ◽  
Wolfgang Rindler
Keyword(s):  
Space Time

Do Writing Directions Influence How People Map Space onto Time?

2018 ◽  
Vol 77 (4) ◽  
pp. 173-184
Author(s):  
Wenxing Yang ◽  
Ying Sun
Keyword(s):  
Mental Representations ◽  
Space Time ◽  
Horizontal Axis ◽  
Causal Role ◽  
Writing Systems ◽  
Temporal Cognition ◽  
Japanese Speakers ◽  
Psychological Experiments ◽  
Vertical Up

Abstract. The causal role of a unidirectional orthography in shaping speakers’ mental representations of time seems to be well established by many psychological experiments. However, the question of whether bidirectional writing systems in some languages can also produce such an impact on temporal cognition remains unresolved. To address this issue, the present study focused on Japanese and Taiwanese, both of which have a similar mix of texts written horizontally from left to right (HLR) and vertically from top to bottom (VTB). Two experiments were performed which recruited Japanese and Taiwanese speakers as participants. Experiment 1 used an explicit temporal arrangement design, and Experiment 2 measured implicit space-time associations in participants along the horizontal (left/right) and the vertical (up/down) axis. Converging evidence gathered from the two experiments demonstrate that neither Japanese speakers nor Taiwanese speakers aligned their vertical representations of time with the VTB writing orientation. Along the horizontal axis, only Japanese speakers encoded elapsing time into a left-to-right linear layout, which was commensurate with the HLR writing direction. Therefore, two distinct writing orientations of a language could not bring about two coexisting mental time lines. Possible theoretical implications underlying the findings are discussed.

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