Theoretical Nanophysics 2023/4

• 149 mK

• 391 mK

• 841 mK

• 333 mK

• 0.606

• 0.368

• 0.211

• 0.135

What is the B-field magnitude at 100 nm distance from a long wire, which carries a current of 100 nA?

• 2 microtesla

• 0.2 microtesla

• 20 microtesla

• 200 microtesla

What is the Fano factor of a single-channel mesoscopic conductor with perfect transmission?

• 0

• 1/2

• 1

• 2

What is the Fano factor of a single-channel mesoscopic conductor with transmission 1/2?

• 1/4

• 1/2

• 1

• 2

What is the Fano factor of a single-channel mesoscopic conductor with transmission << 1?

• approximately 0

• approximately 1/2

• approximately 1

• approximately 2

What is the mean of the binomial random variable with n = 10 trials, and success probability = 0.1?

• 0.1

• 1

• 9

• 10

What is the variance of the binomial random variable with n = 10 trials and success probability = 0.1?

• 0.7

• 0.8

• 0.9

• 1.0

How does the effective temperature of the spin qubit change if it's distance from the current-carrying wire is halved?

• it decreases by a factor of 2

• it increases by a factor of 2

• in increase by a factor of 4

• it does not change

How do the qubit relaxation rates change if the spin qubit's distance from the current-carrying wire is halved?

• they do not change

• they increase by a factor of 2

• they increase by a factor of 4

• they decrease by a factor of 2