Resonant Tunneling in Superfluid Helium-3

          @misc{ scivideos_PIRSA:11020127,
            doi = {10.48660/11020127},
            url = {https://pirsa.org/11020127},
            author = {Wohns, Dan},
            keywords = {Cosmology},
            language = {en},
            title = {Resonant Tunneling in Superfluid Helium-3},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2011},
            month = {feb},
            note = {PIRSA:11020127 see, \url{https://scivideos.org/index.php/pirsa/11020127}}
          }
          

Abstract

The resonant tunneling phenomenon is well understood in quantum mechanics. I argue why a similar phenomenon must be present in quantum field theory. Using the functional Schr\"odinger method I show how resonant tunneling through multiple barriers takes place in quantum field theory with a single scalar field. I also show how this phenomenon in scalar quantum field theory can lead to an exponential enhancement of the single-barrier tunneling rate. My analysis is carried out in the thin-wall approximation. I discuss a possible explanation of the fast nucleation of the B phase of superfluid Helium-3 as an application.