scholarly journals Entanglement entropy at critical points of classical evolution in oscillatory and exotic singularity multiverse models

2021 ◽  
Vol 103 (4) ◽  
Author(s):  
Adam Balcerzak ◽  
Samuel Barroso-Bellido ◽  
Mariusz P. Dąbrowski ◽  
Salvador Robles-Pérez
Keyword(s):  
Critical Points ◽  
Entanglement Entropy ◽  
Classical Evolution

scholarly journals Universal entanglement entropy in two-dimensional conformal quantum critical points

2009 ◽  
Vol 79 (11) ◽  
Author(s):  
Benjamin Hsu ◽  
Michael Mulligan ◽  
Eduardo Fradkin ◽  
Eun-Ah Kim
Keyword(s):  
Critical Points ◽  
Entanglement Entropy ◽  
Two Dimensional ◽  
Quantum Critical Points ◽  
Quantum Critical

scholarly journals Entanglement entropy near Kondo-destruction quantum critical points

2015 ◽  
Vol 91 (24) ◽  
Author(s):  
J. H. Pixley ◽  
Tathagata Chowdhury ◽  
M. T. Miecnikowski ◽  
Jaimie Stephens ◽  
Christopher Wagner ◽  
...  
Keyword(s):  
Critical Points ◽  
Entanglement Entropy ◽  
Quantum Critical Points ◽  
Quantum Critical

The relationship of the scleractinian corals to the rugose corals

Paleobiology ◽  
1980 ◽  
Vol 6 (02) ◽  
pp. 146-160 ◽  
Author(s):  
William A. Oliver
Keyword(s):  
Critical Points ◽  
Scleractinian Corals ◽  
Convincing Evidence ◽  
Early Triassic ◽  
Rugose Corals ◽  
History Of ◽  
The Subject ◽  
Relationship Of ◽  
The Relationship ◽  
Biologic Factors

The Mesozoic-Cenozoic coral Order Scleractinia has been suggested to have originated or evolved (1) by direct descent from the Paleozoic Order Rugosa or (2) by the development of a skeleton in members of one of the anemone groups that probably have existed throughout Phanerozoic time. In spite of much work on the subject, advocates of the direct descent hypothesis have failed to find convincing evidence of this relationship. Critical points are:(1) Rugosan septal insertion is serial; Scleractinian insertion is cyclic; no intermediate stages have been demonstrated. Apparent intermediates are Scleractinia having bilateral cyclic insertion or teratological Rugosa.(2) There is convincing evidence that the skeletons of many Rugosa were calcitic and none are known to be or to have been aragonitic. In contrast, the skeletons of all living Scleractinia are aragonitic and there is evidence that fossil Scleractinia were aragonitic also. The mineralogic difference is almost certainly due to intrinsic biologic factors.(3) No early Triassic corals of either group are known. This fact is not compelling (by itself) but is important in connection with points 1 and 2, because, given direct descent, both changes took place during this only stage in the history of the two groups in which there are no known corals.

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