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Results tagged with quantum-field-theory
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user 383226
Quantum Field Theory (QFT) is the theoretical framework describing the quantisation of classical fields which allows a Lorentz-invariant formulation of quantum mechanics. QFT is used both in high energy physics as well as condensed matter physics and closely related to statistical field theory. Use this tag for many-body quantum-mechanical problems and the theory of particle physics. Don’t combine with the [quantum-mechanics] tag.
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Definition of vacua in QFT in generic spacetimes
The following should answer your 1st questions-\
Bunch-Davies vacuum: This is the vacuum state for a scalar field in an expanding universe, such as the de Sitter space. It is defined by requiring tha …
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Candidates for holographic QFT of 4D Einstein gravity
This is a very interesting and challenging question. The holographic principle, as you mentioned, states that the description of a volume of space can be thought of as encoded on a lower-dimensional b …