scholarly journals Improved Epstein–Glaser renormalization in x-space versus differential renormalization

2014 ◽  
Vol 886 ◽  
pp. 824-869 ◽  
Author(s):  
José M. Gracia-Bondía ◽  
Heidy Gutiérrez ◽  
Joseph C. Várilly
1987 ◽  
Vol 52 (3) ◽  
pp. 294-299 ◽  
Author(s):  
Michael A. Primus

Variable success in audiometric assessment of young children with operant conditioning indicates the need for systematic examination of commonly employed techniques. The current study investigated response and reinforcement features of two operant discrimination paradigms with normal I7-month-old children. Findings indicated more responses prior to the onset of habituation when the response task was based on complex central processing skills (localization and coordination of auditory/visual space) versus simple detection. Use of animation in toy reinforcers resulted in more than a twofold increase in the number of subject responses. Results showed no significant difference in response conditioning rate or consistency for the response tasks and forms of reinforcement examined.


2010 ◽  
Author(s):  
Sean Gallagher ◽  
Jonisha Pollard ◽  
William L. Porter
Keyword(s):  

1995 ◽  
Vol 10 (19) ◽  
pp. 2819-2839 ◽  
Author(s):  
JORDI COMELLAS ◽  
PETER E. HAAGENSEN ◽  
JOSÉ I. LATORRE

We derive, based only on simple principles of renormalization in coordinate space, closed renormalized amplitudes and renormalization group constants at one- and two-loop orders for scalar field theories in general backgrounds. This is achieved through a renormalization procedure we develop exploiting the central idea behind differential renormalization, which needs as the only inputs the propagator and the appropriate Laplacian for the backgrounds in question. We work out this coordinate space renormalization in some detail, and subsequently back it up with specific calculations for scalar theories both on curved backgrounds, manifestly preserving diffeomorphism invariance, and at finite temperature.


2007 ◽  
Vol 45 (3) ◽  
pp. 540-551 ◽  
Author(s):  
Lucas Spierer ◽  
Reto Meuli ◽  
Stephanie Clarke

2021 ◽  
pp. 109-120
Author(s):  
Lanya T. Cai ◽  
Maria Baida ◽  
Jamie Wren-Jarvis ◽  
Ioanna Bourla ◽  
Pratik Mukherjee

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