BFV quantization and BRST symmetries of the gauge invariant fourth-order Pais-Uhlenbeck oscillator

Bhabani Prasad Mandal, Vipul Kumar Pandey, Ronaldo Thibes

We perform the BFV-BRST quantization of the fourth-order Pais-Uhlenbeck oscillator (PUO). We show that although the PUO is not naturally constrained in the sense of Dirac-Bergmann,…