covariant quantization
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Author(s):  
David Montenegro ◽  
B. M. Pimentel

We examine the generalized quantum electrodynamics as a natural extension of the Maxwell electrodynamics to cure the one-loop divergence. We establish a precise scenario to discuss the underlying features between photon and fermion where the perturbative Maxwell electrodynamics fails. Our quantum model combines stability, unitarity, and gauge invariance as the central properties. To interpret the quantum fluctuations without suffering from the physical conflicts proved by Haag’s theorem, we construct the covariant quantization in the Heisenberg picture instead of the Interaction one. Furthermore, we discuss the absence of anomalous magnetic moment and mass-shell singularity.


2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Daniel Mayerson ◽  
Masaki Shigemori

We quantize the D1-D5-P microstate geometries known as superstrata directly in supergravity. We use Rychkov's consistency condition [hep-th/0512053] which was derived for the D1-D5 system; for superstrata, this condition turns out to be strong enough to fix the symplectic form uniquely. For the (1,0,n) superstrata, we further confirm this quantization by a bona-fide explicit computation of the symplectic form using the semi-classical covariant quantization method in supergravity. We use the resulting quantizations to count the known supergravity superstrata states, finding agreement with previous countings that the number of these states grows parametrically smaller than those of the corresponding black hole.


2017 ◽  
pp. 32-43
Author(s):  
Volker Schomerus

2017 ◽  
Vol 95 (2) ◽  
Author(s):  
D. Colladay ◽  
P. McDonald ◽  
J. P. Noordmans ◽  
R. Potting

2012 ◽  
pp. 121-184
Author(s):  
Michael B. Green ◽  
John H. Schwarz ◽  
Edward Witten

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