@article {cohen2001parametric,
	title = {Parametric evolution for a deformed cavity},
	journal = {Physical Review E},
	volume = {63},
	year = {2001},
	pages = {046207},
	publisher = {APS},
	abstract = {We consider a classically chaotic system that is described by a Hamiltonian H(Q,P;x), where (Q,P) describes a particle moving inside a cavity, and x controls a deformation of the boundary. The quantum eigenstates of the system are \|n(x)\&gt;. We describe how the parametric kernel P(n\|m)=\|\&lt;n(x)\|m(x0)\&gt;\|2, also known as the local density of states, evolves as a function of δx=x-x0. We illuminate the nonunitary nature of this parametric evolution, the emergence of nonperturbative features, the final nonuniversal saturation, and the limitations of random-wave considerations. The parametric evolution is demonstrated numerically for two distinct representative deformation processes.},
	url = {http://dx.doi.org/10.1103/PhysRevE.63.046207},
	author = {Cohen, Doron and Barnett, Alex and Heller, EricJ.}
}
