quantum field
Constraints on Cosmology and Quantum Gravity from Quantum Mechanics and Quantum Field Theory
... the field) rolling down the potential, quantum field theory in curved spacetime dictates that each Fourier mode of the field has a nonzero variance (two-point ...the quantum states ...
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Unusual signs in quantum field theory
... of quantum field ...Lee-Wick quantum field theory, if realized physically, would constitute a violation of several of our basic physical principles; but nevertheless, it appears to be ...
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Primitive ontology and quantum field theory
... But QFT makes predictions that are empirically extremely well-confirmed in real world experiments, obviously involving interactions. And it does so by (among other things) imposing various constraints so that the number ...
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Quantum gravity from the point of view of locally covariant quantum field theory
... Quantum field theory on curved spacetime is nowadays well ...algebraic quantum field theory since there does not exist a distinguished Hilbert space of ...classical field con- ...
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Quantum field theories on categories fibered in groupoids
... which commutes up to a natural transformation that embeds U π A ◦ π as a subtheory of A. We will show that the right Kan extension U π A : Loc → Alg assigns interest- ing algebras U π A(M ) to spacetimes M , which one ...
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The Philosophy of Quantum Field Theory
... (Lagrangian) quantum field theory” (Greaves and Thomas, 2014, ...formal field theories assumes that these theories are Lorentz invariant; but as we saw above in Section 2, the only known way to work ...
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Quantum spectral curve as a tool for a perturbative quantum field theory
... Instead of computing corrections in wrappings, the thermodynamic Bethe Ansatz (TBA) ap- proach [34] was adapted to the AdS/CFT case and the TBA equations which are expected to be exact at any λ were derived [35–38]. ...
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Probabilities and signalling in quantum field theory
... We present an approach to computing probabilities in quantum field theory for a wide class of source–detector models. The approach works directly with probabilities and not with squared matrix elements, and ...
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Homotopy quantum field theory and quantum groups
... Recently work has been done to establish an interesting connection between the notion of Frobenius algebra or the more general Frobenius extension on the one hand and 2- dimensional topological quantum ...
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Quantum gravity from the point of view of locally covariant quantum field theory
... The algebra generated by the relative observables is subsequently quantized with the use of the BV formalism. For the purposes of perturbation theory we replace the diffeomorphism group by the Lie algebra of vector fields, ...
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Generating Ontology: From Quantum Mechanics to Quantum Field Theory
... -----, (1962a), "Gauge Invariance and Mass," Physical Review 125: 397-398. -----, (1962b), "Gauge Invariance and Mass. II," Physical Review 128: 2425. -----, (1964), "Field Theory of ...
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On the Charges and Currents in the Quantum Field Theory
... In order to maintain the connection with the Lie algebra of the SU2 group we choose traceless, hermitian Gell-Mann matrices as the base of our vector space:.. Now from 7 we calculate the[r] ...
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Branes and Supersymmetric Quantum Field Theories
... from quantum corrections by supersymmetry, and also the BPS spectrum of a related two-dimensional N = (2, 2) theory whose (twisted) superpotential is determined by the Seiberg-Witten ...
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Mathematical Nanotechnology: Quantum Field Intentionality
... the field action that infiltrates into the whole space of the particles influencing or “infecting” the temporary or instantaneous actions making that the particles arrange themselves all and with added actions not ...
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Working directly with probabilities in quantum field theory
... Figure 2. Diagrammatic representation of F 4 , describing the evolution of the density operator forwards in time due to the exchange of a φ quantum. The initial time t = 0 is at the bottom of the diagrams and the ...
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Dispersion relations and dynamic characteristics of bound states in the model of a Dirac field interacting with a material plane
... the quantum field model ...a quantum field is possible on the basis of the method proposed by ...of quantum field models in an inhomogeneous space-time ...of quantum ...
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Space Time Properties as Quantum Effects Restrictions Imposed by Grothendieck’s Scheme Theory
... WF u characterizes the singularities of a distribution u, not only in space, but also with respect to its Fourier transform at each point. The term wavefront was coined by Lars Hörmander [28]. It should be noted that the ...
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Dynamical locality of the free Maxwell field
... the field strength tensor description) of the free Maxwell field do not obey local covariance since degenerate pre-symplectic spaces and non-simple unital (C)*-algebras arise whenever the second de Rham ...
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Evolution of Cancer: A Quantum Mechanical Approach
... biological quantum field will give rise to macroscopic quantum phenomena in living systems by influencing a certain level of organizational hierarchy, the complex global energy-information pattern ...
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Straub, Ann-Kathrin (2017): Applications of gauge/gravity duality: systems close to & far from equilibrium. Dissertation, LMU München: Fakultät für Physik
... is not applicable in those cases. AdS/CFT seems to be a promising candidate for a method to study strongly coupled systems. However, the two theories involved in the AdS/CFT proposal are quite special due to their high ...
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