05.03.2015 Views

1 Introduction 2 Resolvents and Green's Functions

1 Introduction 2 Resolvents and Green's Functions

1 Introduction 2 Resolvents and Green's Functions

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

(b) From your answer to part (a), show that, for α = 2:<br />

φ(x; t) = ( mω<br />

π ) 1 4 exp<br />

{<br />

− mω<br />

2 (x − a cos ωt)2 − iω 2<br />

You should give some thought to how you might have attacked this<br />

problem using “elementary methods”, without knowing U(x, y; t).<br />

(c) Notice that the choice α = 2 corresponds to an initial state wave<br />

function something like a “displaced” ground state wave function.<br />

Solve for the probability distribution to find the particle at x as<br />

a function of time (for α = 2). Your result should have a simple<br />

form <strong>and</strong> should have an obvious classical correspondence.<br />

[<br />

t + 2max sin ωt − m a2<br />

2 sin 2ωt ]}<br />

.<br />

(131)<br />

23

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!