scholarly journals Topology change of spacetime and resolution of spacetime singularity in emergent gravity

2013 ◽  
Vol 87 (12) ◽  
Author(s):  
Sunggeun Lee ◽  
Raju Roychowdhury ◽  
Hyun Seok Yang
Keyword(s):  
Topology Change ◽  
Emergent Gravity ◽  
Spacetime Singularity

scholarly journals Topology change, emergent symmetries and compact star matter

2021 ◽  
Vol 31 (1) ◽  
Author(s):  
Yong-Liang Ma ◽  
Mannque Rho
Keyword(s):  
Nuclear Matter ◽  
Compact Star ◽  
Momentum Tensor ◽  
Effective Field ◽  
Compact Stars ◽  
Strongly Correlated ◽  
Topology Change ◽  
Dense Nuclear Matter ◽  
Skyrmion Matter ◽  
Energy Constants

AbstractTopology effects have being extensively studied and confirmed in strongly correlated condensed matter physics. In the limit of large number of colors, baryons can be regarded as topological objects—skyrmions—and the baryonic matter can be regarded as a skyrmion matter. We review in this paper the generalized effective field theory for dense compact-star matter constructed with the robust inputs obtained from the skyrmion approach to dense nuclear matter, relying on possible “emergent” scale and local flavor symmetries at high density. All nuclear matter properties from the saturation density n0 up to several times n0 can be fairly well described. A uniquely novel—and unorthdox—feature of this theory is the precocious appearance of the pseudo-conformal sound velocity $v^{2}_{s}/c^{2} \approx 1/3$ v s 2 / c 2 ≈ 1 / 3 , with the non-vanishing trace of the energy momentum tensor of the system. The topology change encoded in the density scaling of low energy constants is interpreted as the quark-hadron continuity in the sense of Cheshire Cat Principle (CCP) at density $\gtrsim 2n_{0}$ ≳ 2 n 0 in accessing massive compact stars. We confront the approach with the data from GW170817 and GW190425.

scholarly journals Topology change in canonical quantum cosmology

1997 ◽  
Vol 56 (6) ◽  
pp. 3329-3340 ◽  
Author(s):  
Vitorio A. De Lorenci ◽  
Jéro⁁me Martin ◽  
Nelson Pinto-Neto ◽  
Ivano Damião Soares
Keyword(s):  
Quantum Cosmology ◽  
Topology Change ◽  
Canonical Quantum

RESEARCH OF METHODS FOR DECREASE OF THE CAPACITANCE RATIO IN THE STW-RESONATORS

2021 ◽  
pp. 43-56
Author(s):  
S. A. Dobershtein ◽  
N. M. Zhilin ◽  
I. V. Veremeev
Keyword(s):  
Experimental Data ◽  
Quality Factor ◽  
Quality Factors ◽  
Topology Change ◽  
Series Connection ◽  
Capacitance Ratio ◽  
And Topology

This paper presents the research of methods for decrease of the capacitance ratio in the STW-resonators without significant degradation of the quality factor by use of the external inductors and topology change: IDT division on parts and their series connection. The calculated and experimental data are presented for 416 MHz and 766 MHz STW-resonators with quality factors Q = 7000–7978. The capacitance ratio has been reduced from 1200 to 301.

Novel strategies for path stability estimation under topology change using Hello messaging in MANETs

2019 ◽  
Vol 87 ◽  
pp. 76-99 ◽  
Author(s):  
Alamgir Naushad ◽  
Ghulam Abbas ◽  
Ziaul Haq Abbas ◽  
Aris Pagourtzis
Keyword(s):  
Topology Change ◽  
Stability Estimation ◽  
Path Stability

scholarly journals Emergent Gravity Fails to Explain Color-dependent Galaxy–Galaxy Lensing Signal from SDSS DR7

2021 ◽  
Vol 914 (2) ◽  
pp. 96
Author(s):  
Wentao Luo ◽  
Jiajun Zhang ◽  
Vitali Halenka ◽  
Xiaohu Yang ◽  
Surhud More ◽  
...  
Keyword(s):  
Emergent Gravity
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