Found 3368 results, sorted by relevancy. Show newest relevant.Update me on new preprints

On Marginal Operators in Boundary Conformal Field Theory

The presence of a boundary (or defect) in a conformal field theory allows one to generalize the notion of an exactly marginal deformation. Expand abstract.
242 days ago
10/10 relevant
arXiv

Thermo Field Dynamics Extension of Group Field Theory

Group field theories are higher-rank generalizations of matrix/tensor models, and encode the simplicial geometries of quantum gravity. Expand abstract.
139 days ago
10/10 relevant
arXiv

Semisimple 4-dimensional topological field theories cannot detect exotic smooth structure

We prove that semisimple 4-dimensional oriented topological field theories lead to stable diffeomorphism invariants and can therefore not distinguish homeomorphic closed oriented smooth 4-manifolds and homotopy equivalent simply connected closed oriented smooth 4-manifolds. Expand abstract.
48 days ago
10/10 relevant
arXiv

Hamiltonian anomalies from extended field theories

We develop a proposal by Freed to see anomalous field theories as relative field theories, namely field theories taking value in a field theory in one dimension higher, the anomaly field theory. Expand abstract.
1946 days ago
10/10 relevant
arXiv

A new strategy to microscopic modelling of topological entanglement in polymers based on field theory

After the passage to field theory, the original topological constraints imposed on the fluctuating paths of the polymers become constraints over the configurations of the topological fields that mediate the interactions of topological origin between the monomers. Expand abstract.
275 days ago
10/10 relevant
arXiv

General field theory and weak Euler-Lagrange equation for classical particle-field systems in plasma physics

Compared with the standard classical field theory, the distinguish feature of a classical particle-field system is that the particles and fields reside on different manifolds. Expand abstract.
330 days ago
10/10 relevant
arXiv

Vacuum energy in the effective field theory of general relativity II: Inclusion of fermions and a comment on the QCD contribution

Recently in the framework of a two-loop order calculation for an effective field theory of scalar and vector fields interacting with the metric field we have shown that for the cosmological constant term which is fixed by the condition of vanishing vacuum energy the graviton remains massless and there... Expand abstract.
171 days ago
10/10 relevant
arXiv

Classical Open String Amplitudes and Boundary String Field Theory

Abstract: We show that boundary string field theory realizes the minimal model of open string field theory. Expand abstract.
330 days ago
10/10 relevant
arXiv

Extracting the field theory description of a quantum many-body system from experimental data

Our work opens new ways of addressing fundamental questions in quantum field theory, which are relevant in high-energy and condensed matter physics, and in taking quantum phenomena from fundamental science to practical technology. Expand abstract.
150 days ago
10/10 relevant
arXiv

Boundary String Current & Weyl Anomaly in Six-dimensional Conformal Field Theory

It was recently discovered that for a boundary system in the presence of a background magnetic field, the quantum fluctuation of the vacuum would create a non-uniform magnetization density for the vacuum and a magnetization current is induced in the vacuum. Expand abstract.
425 days ago
10/10 relevant
arXiv