subject
Physics, 17.07.2019 18:20 sarbjit879

[60 pts] consider a two-level system. an operator a representing observable a, has two normalized eigenstates vand 0-1 with eigenvalues 1 and -1, respectively. operator b, representing observable b, has two normalized eigenstates (42 + v34-1)/2 and (1344 – 24-1)/2 with eigenvalues 1 and -1, respectively. (a) [20 pts] compute [a] (find the corresponding 2x2 matrix in the basis {431,4-1}). (b) (20 pts] assume that the system is in state (42 +-1)/v2. compute the variances o =< a> -< â> ? and off and check the uncertainty relation. (c) [20 pts] suppose that observable a was measured once at a certain time. right after the measurement, the expectation value of b for the system was 1/2. then, what would be the expectation value of a for this system?

ansver
Answers: 3

Another question on Physics

question
Physics, 22.06.2019 02:10
How is coal extracted from mountaintop removal mines? a. dynamite is used to create underground tunnels where miners go to extract the coal. b. dynamite is used to break apart rocks and then draglines are used to remove the broken rock and reach the coal. c. coal in mountaintops is extracted by digging strips in the landscape to reach the coal. d. placer deposits in mountain river bottoms are removed by
Answers: 2
question
Physics, 22.06.2019 14:00
This is one type of line graph in which the independent variable is time plotted on the x axis and the dependent variable, also numerical, is plotted on the y axis.
Answers: 2
question
Physics, 22.06.2019 15:10
Suppose that f : rn → rm and that a ∈ k, where k is a connected subset of rn . suppose further that for each x ∈ k there exists a δx > 0 such that f(x) = f(y) for all y ∈ bδx (x). prove that f is constant on k; that is, f(x) = f(a) for all x ∈ k
Answers: 1
question
Physics, 22.06.2019 16:30
Write a polynomial function with the given zeros x= -1,0,2show your work
Answers: 3
You know the right answer?
[60 pts] consider a two-level system. an operator a representing observable a, has two normalized ei...
Questions
question
English, 08.09.2020 01:01
question
Mathematics, 08.09.2020 01:01
question
Mathematics, 08.09.2020 01:01
question
Mathematics, 08.09.2020 01:01
question
Social Studies, 08.09.2020 01:01
question
Mathematics, 08.09.2020 01:01