Document Type

Conference Proceeding

Publication Date


Publication Title

Neutrino Mass, Dark Matter, Gravitational Waves, Monopole Condensation, and Light Cone Quantization


Plenum Press


Vacuum, Light-Cone Field Theory, Light-Cone Quantization, Hamiltonians, Hilbert Space


This is an overview of the problem of the vacuum in light-cone field theory, stressing its close connection to other puzzles regarding light-cone quantization. I explain the sense in which the light-cone vacuum is ``trivial,'' and describe a way of setting up a quantum field theory on null planes so that it is equivalent to the usual equal-time formulation. This construction is quite helpful in resolving the puzzling aspects of the light-cone formalism. It furthermore allows the extraction of effective Hamiltonians that incorporate vacuum physics, but that act in a Hilbert space in which the vacuum state is simple. The discussion is fairly informal, and focuses mainly on the conceptual issues.

First Page


Last Page


Original Citation

Neutrino mass, dark matter, gravitational waves, monopole condensation, and light cone quantization. Proceedings, International Conference, Orbis Scientiae 1996, Miami Beach, USA, January 25-28, 1996 - Kursunoglu, B.N. et al. New York, USA: Plenum (1996) 396 p


Publisher's Version

Peer Reviewed


Included in

Physics Commons



To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.