We analyze the unitarity properties of higher derivative quantum field theories which are free of ghosts and ultraviolet singularities. We point out that in spite of the absence of ghosts most of these theories are not unitary. This result confirms the difficulties of finding a consistent quantum field theory of quantum gravity
Abstract We study the main options for a unitary and renormalizable, local quantum field theory of t...
22 pages LaTeX, 4 ps figures. Final version published in Nucl. Phys. BInteracting theories with high...
We suggest and briefly review a new sort of superrenormalizable models of higher derivative quantum ...
We analyze the unitarity properties of higher derivative quantum field theories which are free of gh...
本論文是研究再平坦時空高次微分量子場論的微擾么正性.我們將會討論建構一個同時具么正性以及紫外有限場論的困難.This thesis is devoted to the study of the per...
We review some of the recent results which can be useful for better understanding of the problem of ...
Perturbation theory for gravity in dimensions greater than two requires higher derivatives in the fr...
We provide a full analysis of ghost free higher derivative field theories with coupled degrees of fr...
We show that Minkowski higher-derivative quantum field theories are generically inconsistent, becaus...
In this paper we will study Lorentz-invariant, infinite derivative quantum field theories, where inf...
Quantum field theory in curved space-times is a well developed area in mathematical physics which ha...
International audienceA brief review of the physics of systems including higher derivatives in the L...
In the recently proposed non-local theory of quantum gravity one can avoid massive tensor ghosts at ...
Generic higher derivative theories are believed to be fundamentally unphysical because they contain ...
International audienceWe study the main options for a unitary and renormalizable, local quantum fiel...
Abstract We study the main options for a unitary and renormalizable, local quantum field theory of t...
22 pages LaTeX, 4 ps figures. Final version published in Nucl. Phys. BInteracting theories with high...
We suggest and briefly review a new sort of superrenormalizable models of higher derivative quantum ...
We analyze the unitarity properties of higher derivative quantum field theories which are free of gh...
本論文是研究再平坦時空高次微分量子場論的微擾么正性.我們將會討論建構一個同時具么正性以及紫外有限場論的困難.This thesis is devoted to the study of the per...
We review some of the recent results which can be useful for better understanding of the problem of ...
Perturbation theory for gravity in dimensions greater than two requires higher derivatives in the fr...
We provide a full analysis of ghost free higher derivative field theories with coupled degrees of fr...
We show that Minkowski higher-derivative quantum field theories are generically inconsistent, becaus...
In this paper we will study Lorentz-invariant, infinite derivative quantum field theories, where inf...
Quantum field theory in curved space-times is a well developed area in mathematical physics which ha...
International audienceA brief review of the physics of systems including higher derivatives in the L...
In the recently proposed non-local theory of quantum gravity one can avoid massive tensor ghosts at ...
Generic higher derivative theories are believed to be fundamentally unphysical because they contain ...
International audienceWe study the main options for a unitary and renormalizable, local quantum fiel...
Abstract We study the main options for a unitary and renormalizable, local quantum field theory of t...
22 pages LaTeX, 4 ps figures. Final version published in Nucl. Phys. BInteracting theories with high...
We suggest and briefly review a new sort of superrenormalizable models of higher derivative quantum ...