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bio website mat.univie.ac.at/~neum
location Vienna, Austria
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visits member for 2 years, 4 months
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Mar
21
answered What exactly is regularization in QFT?
Mar
21
comment Quantum Wave Mechanics
@iota: I appended some more to the answer to clarify. But the two links you give answer questions quite different from what you formulated. (Hobson says that the particle picture is too limited in the context of quantum fields, whereas Motl refers to the simple situation of single particle quantum mechanics only, where complementarity (duality) has a fairly clear meaning.
Mar
21
revised Quantum Wave Mechanics
added an explanation of electrons as excitations/modes of a quantum field
Mar
20
awarded  Nice Answer
Mar
17
comment Quantum Wave Mechanics
@mpv: As I had written, no (as far as I know). To learn the subject, I added a second, more readable reference.
Mar
17
revised Quantum Wave Mechanics
added a more readable reference
Mar
17
answered On Group Theory: Symmetry Groups and Our Interest
Mar
17
answered Hilbert Space of (quantum) Gauge theory
Mar
17
revised Quantum Wave Mechanics
Improved formula layout and added references
Mar
17
revised Quantum Wave Mechanics
Improved formula layout
Mar
16
answered Quantum Wave Mechanics
Mar
16
answered Effect of linear terms on a QFT
Mar
1
awarded  Yearling
Feb
6
comment A dictionary of string - standard physics correspondences
I don't know the field, hence cannot tell where to draw the limit. Everything that would add insight without much technicality would be welcome.
Feb
2
comment A dictionary of string - standard physics correspondences
@LubošMotl: When I asked the question I thought there might be many entries. So I was disappointed of the answer. I want to know what of string theory can be understood on an intuitive but still technical level, with a background in general relativity, quantum fields and conformal fields, but without background knowledge from string theory.
Jan
25
answered Mass gap for photons
Jan
25
revised What is a mass gap?
added a reference
Jan
25
answered Energy spectrum, mass spectrum, and mass gap
Jan
25
comment Energy spectrum, mass spectrum, and mass gap
The lack of a mass gap goes in all intersting cases together with the existence of a massless particle. These don't have a rest frame. See, e.g., the sections
Jan
22
answered What distinguishes time from space in Quantum Field Theory?