scholarly journals Gauge transformation in macroscopic quantum electrodynamics near polarizable surfaces

2019 ◽  
Vol 100 (6) ◽  
Author(s):  
Robert Zietal ◽  
Claudia Eberlein
Keyword(s):  
Gauge Transformation ◽  
Quantum Electrodynamics ◽  
Macroscopic Quantum

scholarly journals Macroscopic quantum electrodynamics and density functional theory approaches to dispersion interactions between fullerenes

2020 ◽  
Vol 22 (40) ◽  
pp. 23295-23306
Author(s):  
Saunak Das ◽  
Johannes Fiedler ◽  
Oliver Stauffert ◽  
Michael Walter ◽  
Stefan Yoshi Buhmann ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Excited States ◽  
Quantum Electrodynamics ◽  
Density Functional ◽  
Dispersion Interactions ◽  
Functional Theory ◽  
Electronically Excited States ◽  
Macroscopic Quantum ◽  
Td Dft ◽  
Electronically Excited

Van der Waals potentials determine supramolecular structures of molecules in ground and long-lived electronically excited states. We investigate how macroscopic quantum electrodynamics can be used to efficiently describe such potentials based on (TD)DFT-derived polarizabilities.

scholarly journals Macroscopic quantum electrodynamics in nonlocal and nonreciprocal media

2012 ◽  
Vol 14 (8) ◽  
pp. 083034 ◽  
Author(s):  
Stefan Yoshi Buhmann ◽  
David T Butcher ◽  
Stefan Scheel
Keyword(s):  
Quantum Electrodynamics ◽  
Macroscopic Quantum

scholarly journals Perturbative quantum gauge invariance: where the ghosts come from

2005 ◽  
Vol 83 (2) ◽  
pp. 139-163
Author(s):  
Andreas Aste
Keyword(s):  
Gauge Transformation ◽  
Quantum Electrodynamics ◽  
Gauge Theories ◽  
Group Structure ◽  
Free Field ◽  
Main Tool ◽  
Yang Mills ◽  
Integral Methods ◽  
Interaction Terms ◽  
S Matrix

A condensed introduction to quantum gauge theories is given in the perturbative S-matrix framework, with path-integral methods used nowhere. This approach emphasizes the fact that it is not necessary to start from classical gauge theories that are then subject to quantization: it is possible, instead, to recover the classical group structure and coupling properties from purely quantum-mechanical principles. As a main tool, we use a free-field version of the Becchi–Rouet–Stora–Tyutin gauge transformation, which contains no interaction terms related to a coupling constant. This free gauge transformation can be formulated in an analogous way for quantum electrodynamics, Yang–Mills theories with massless or massive gauge bosons, and quantum gravity. PACS Nos.: 11.10.–z, 11.15.Bt, 12.20.Ds, 12.38.Bx

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