Magnetic thermodynamics of fcc Ni from first-principles partition function approach

2010 ◽  
Vol 108 (12) ◽  
pp. 123514 ◽  
Author(s):  
Shun-Li Shang ◽  
James E. Saal ◽  
Zhi-Gang Mei ◽  
Yi Wang ◽  
Zi-Kui Liu
Keyword(s):  
Partition Function ◽  
First Principles ◽  
Function Approach

Entropies of Metals at the Melting Point Based on the Partition Function Approach

2003 ◽  
Vol 22 (2) ◽  
pp. 95-102
Author(s):  
Isao Yokoyama, ◽  
Koichiro Maruyama, ◽  
Yoshio Waseda,
Keyword(s):  
Melting Point ◽  
Partition Function ◽  
Function Approach

scholarly journals Higher-spin symmetry vs. boundary locality, and a rehabilitation of dS/CFT

2020 ◽  
Vol 2020 (10) ◽  
Author(s):  
Adrian David ◽  
Yasha Neiman
Keyword(s):  
Partition Function ◽  
First Principles ◽  
Spin Symmetry ◽  
Feynman Diagrams ◽  
Vector Model ◽  
Precise Form ◽  
Higher Spin ◽  
Shell Boundary ◽  
First Time ◽  
Do So

Abstract We consider the holographic duality between 4d type-A higher-spin gravity and a 3d free vector model. It is known that the Feynman diagrams for boundary correlators can be encapsulated in an HS-algebraic twistorial expression. This expression can be evaluated not just on separate boundary insertions, but on entire finite source distributions. We do so for the first time, and find that the result ZHS disagrees with the usual CFT partition function. While such disagreement was expected due to contact corrections, it persists even in their absence. We ascribe it to a confusion between on-shell and off-shell boundary calculations. In Lorentzian boundary signature, this manifests via wrong relative signs for Feynman diagrams with different permutations of the source points. In Euclidean, the signs are instead ambiguous, spoiling would-be linear superpositions. Framing the situation as a conflict between boundary locality and HS symmetry, we sacrifice locality and choose to take ZHS seriously. We are rewarded by the dissolution of a long-standing pathology in higher-spin dS/CFT. Though we lose the connection to the local CFT, the precise form of ZHS can be recovered from first principles, by demanding a spin-local boundary action.

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