An electron is at rest in an oscillating magnetic field along the z-direction with B₂-Bo cos(wt) where Bo and w are constants.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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An electron is at rest in an oscillating magnetic field along the z-direction with B₂-Bo cos(wt) where
Bo and are constants.
a. Write the Hamiltonian matrix for this spin system.
b. The electron starts out at t=0 in the spin-up state with respect to the x-axis, that is x(0)=x+(×).
Determine x(t) at any subsequent time. Hint: Solve the time-dependent Schrodinger equation
directly.
c. Find the probability of getting -hbar/2 (hbar-h/2T) if you measure Sy.
d. What is the minimum field (Bo) required to force a complete flip in Sx.
Transcribed Image Text:An electron is at rest in an oscillating magnetic field along the z-direction with B₂-Bo cos(wt) where Bo and are constants. a. Write the Hamiltonian matrix for this spin system. b. The electron starts out at t=0 in the spin-up state with respect to the x-axis, that is x(0)=x+(×). Determine x(t) at any subsequent time. Hint: Solve the time-dependent Schrodinger equation directly. c. Find the probability of getting -hbar/2 (hbar-h/2T) if you measure Sy. d. What is the minimum field (Bo) required to force a complete flip in Sx.
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