52 citations · 372 across the 36 of their papers we have counts for
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The Hagedorn--Hermite Correspondence
Tomoki Ohsawa
We investigate the relationship between the semiclassical wave packets of Hagedorn and the Hermite functions by establishing a relationship between their ladder operators. This Hag…
A new Phase Space Density for Quantum Expectations
Johannes Keller, Caroline Lasser, Tomoki Ohsawa
We introduce a new density for the representation of quantum states on phase space. It is constructed as a weighted difference of two smooth probability densities using the Husimi…
The Siegel Upper Half Space is a Marsden-Weinstein Quotient: Symplectic Reduction and Gaussian Wave Packets
Tomoki Ohsawa
We show that the Siegel upper half space is identified with the Marsden-Weinstein quotient obtained by symplectic reduction of the cotangent bundle $T^{*}\mathbb{R}^{2d^{2}…
Contact Geometry of the Pontryagin Maximum Principle
Tomoki Ohsawa
This paper gives a brief contact-geometric account of the Pontryagin maximum principle. We show that key notions in the Pontryagin maximum principle---such as the separating hyperp…