22 papers
Quantum Field Theory and Differential Geometry
W. F. Chen
We introduce the historical development and physical idea behind topological Yang-Mills theory and explain how a physical framework describing subatomic physics can be used as a to…
Decoherence of a Single Qubit from Quantum Anomaly
W. F. Chen, R. Kobes, G. Kunstatter
We show via an explicit example that quantum anomalies can lead to decoherence of a single quantum qubit through phase relaxation. The anomaly causes the Hamiltonian to develop a n…
Gravity Dual of Superconformal Anomaly
W. F. Chen
The supergravity dual of superconformal anomaly in a four-dimensional supersymmetric gauge theory is investigated. We consider a well-established dual correspondence between the ${…
The Holographic Supercurrent Anomaly
M. Chaichian, W. F. Chen
The γ-trace anomaly of supersymmetry current in a supersymmetric gauge theory shares a superconformal anomaly multiplet with the chiral R-symmetry anomaly and the Weyl anomaly, and…
On Adler-Bell-Jackiw Anomaly in 3-brane Scenario
W. F. Chen, R. B. Mann
We investigate the ABJ anomaly in the framework of an effective field theory for a 3-brane scenario and show that the contribution from induced gravity on the brane depends on both…
Issues on Radiatively Induced Lorentz and CPT Violation in Quantum Electrodynamics
W. F. Chen
Various ambiguous results on radiatively induced Lorentz and CPT violation in quantum electrodynamics with a modified fermionic sector are reviewed and possible explanations for th…