Quiz #
Now that you have gone through the website, heres a short quiz for you!
There are 6 Multiple Choice Questions in total. Read through all of the options carefully.
When you feel you have answered the questions confidently, click on the Answer box to reveal the correct answer.
Question 1 #
When you perform an operation on one particle, how long does it take for the other entangled particle to be affected?
A: Instantaneously
B: 1 Nanosecond
C: 1 Microsecond
D: As long as the time light takes to travel between their positions
Answer
Answer: A
The collapse of the state of the other entangled particle happens at the exact same time we perform an operation on its entangled particle.
Question 2 #
What is the assumption that the EPR paradox is trying to counter?
A: Light is a wave
B: Light is a particle
C: One cannot measure a physical quantity more accurately than a certain constant value
D: A physical quantity of a system does not have a definite value until a measurement of said quantity takes place
Answer
Answer: D
The EPR Paradox is a thought experiment which showed that if we measure a certain physical quantity in one system, we will know for sure the corresponding quantity in a system that is entangled to the initial one.
Question 3 #
In the CHSH game, what is the expectation of the win rate for the best possible classical strategy?
A: 100% (there exists a perfect strategy)
B: 85%
C: 75%
D: 50%
Answer
Answer: C
You may want to reveiw the CHSH game again.
Question 4 #
How many values can \(n\) number of qubits represent ?
A:
\(n^2\)
B:
\(2^n\)
C:
\(e^n\)
D:
\(n!\)
Answer
Question 5 #
What is the maximum number of particles that can be entangled with each other?
A: 1 Answer: D Theoretically, there is no such limit for the number of particles that can be entangled with each other. In fact, Kong et. al. (2020) were able to produce at least 15.2 quadrillion entangled atoms. Do note as well that if the number of entangled particles increases, the degree of entanglement of each particle does decrease. This is known as the Coffman-Kundu-Wootters monogamy.
B: 2
C: 3
D: There is no limit.
Answer
Question 6 #
What purposes are there to develop more accurate clocks?
A: Teachers can scold you for being late to class
B: Teachers can deduct more marks for late submissions
C: You can talk to friends across the world with less delay
D: Maximised profit from high-frequency trading