Weyl CCR Quantization

Encoding canonical commutation relations via Weyl unitaries V(z)=exp(iR(z))
Weyl CCR Quantization

A quantization of (K,B)(K,B) assigns to each zKz\in K a selfadjoint operator R(z)R(z) so that V(z)=eiR(z)V(z)=e^{iR(z)} satisfies the Weyl relations

V(z1)V(z2)=eiB(z1,z2)/2V(z1+z2). V(z_1)V(z_2)=e^{-iB(z_1,z_2)/2}\,V(z_1+z_2).

Key property (paper use):

  • Shale requires V()V(\cdot) to be weakly continuous on each finite-dimensional subspace (regularity).

Example: In 1D, V(p,q)=ei(pP+qQ)V(p,q)=e^{i(pP+qQ)} with [P,Q]=i[P,Q]=i.