26 citations · 66 across the 5 of their papers we have counts for
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Anomalies and Renormalization of Impure States in Quantum Theories
Kumar S. Gupta, Amilcar Queiroz
In a Hamiltonian approach to anomalies parity and time reversal symmetries can be restored by introducing suitable impure (or mixed) states. However, the expectation values of obse…
Quantum Physics and Fluctuating Topologies: Survey
M. Asorey, A. P. Balachandran, G. Marmo +4
The spin-statistics connection, quantum gravity and other physical considerations suggest that classical space-time topology is not an immutable attribute and can change in quantum…
Spontaneous Breaking of Lorentz Symmetry and Vertex Operators for Vortices
A. P. Balachandran, Seckin Kurkcuoglu, Amilcar R. de Queiroz
We first review the spontaneous Lorentz symmetry breaking in the presence of massless gauge fields and infraparticles. This result was obtained long time ago in the context of rigo…
Twisted Poincare Invariance, Noncommutative Gauge Theories and UV-IR Mixing
A. P. Balachandran, A. Pinzul, A. R. Queiroz
In the absence of gauge fields, quantum field theories on the Groenewold-Moyal (GM) plane are invariant under a twisted action of the Poincare group if they are formulated followin…