ISQS 2340 Exam 3 Questions and Answers 100% Verified
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ISQS 2340
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ISQS 2340
Describe the property of "entanglement" as you understand it based off of how the
woman explained it to the teenager. - ️️taking two independent occurrences and
causing one to subsequently mimic the other
-very hard to undo an entanglement
-after entanglement, even if tested at the exact sa...
ISQS 2340 Exam 3
Describe the property of "entanglement" as you understand it based off of how the
woman explained it to the teenager. - ✔️✔️taking two independent occurrences and
causing one to subsequently mimic the other
-very hard to undo an entanglement
-after entanglement, even if tested at the exact same time, the two occurrences would
still be exactly correlated
When the woman is explaining to the teenager, she uses the analogy of the giant penny
and deciding whether it is heads or tails whilst spinning on its side. What property of
quantum computing is she describing in the use of this analogy? - ✔️✔️superposition
What name does the woman give the machine when talking to the teenager? -
✔️✔️dilution refrigerator
What does the dilution refrigerator do? - ✔️✔️a device used to cool quantum chips to a
temperature cold enough that superposition and entanglement can be created through
cubits without the information being lost to the environment
What is one of the things the woman says quantum computers can be used for when
she talks to the teenager? - ✔️✔️simulating chemical bonding
How do the "levels" work on a quantum computer as described to the undergrad
student? - ✔️✔️the levels get colder as you go from top to bottom
What is "room temperature" in terms of quantum computing? - ✔️✔️300 Kelvin
What temperature are quantum chips when they reach the bottom of the dilution fridge?
- ✔️✔️10 million Kelvin
What third quantum property is introduced when the woman speaks to the undergrad? -
✔️✔️interference
Name the 2 types of interference and briefly describe them. - ✔️✔️1. constructive
(wave amplitudes that *add* so that the signal gets larger)
2. destructive (wave amplitudes that cancel the original amplitudes)
In quantum computing, "A" is represented as what combination of numbers as
explained to the child? - ✔️✔️01000001
, How does interference work in quantum computing? - ✔️✔️you can control quantum
states and *amplify* the signals leading to the right answer (constructive) and *cancel*
the signals leading to the wrong answer (destructive)
What is the first step in building a quantum computer? - ✔️✔️must have a physical
device that can actually be put into the states of superposition, entanglement, and
interference (called *"qubits"* or *"quantum bits"*)
When talking to the undergrad, what name does the woman give the device that she
says can support a quantum state as well as allow scientists to manipulate that
quantum state? - ✔️✔️"superconducting qubits"
What scenario does the woman tell the undergrad is really hard for standard computers
to do that would be easier if done by a quantum computer? - ✔️✔️simulating the
system of nature
How are qubits coded as described to the grad student? - ✔️✔️with microwave pulses
of different frequencies and durations that will put the qubit(s) into a certain state of
quantum computation
What are the 2 main classes of quantum algorithms as described to the grad student? -
✔️✔️1. factoring algorithms
2. search algorithms
When the woman is speaking to the grad student she says: "The key is to come up with
algorithms where the result is __________________." - ✔️✔️deterministic
As described to the grad student, what do quantum computers require that would allow
them to process search and factoring algorithms that is not yet available? - ✔️✔️fault
tolerance
How many error corrected qubits does the woman tell the grad student that we have
today? - ✔️✔️around 50
How does the woman tell the grad student people can get involved with quantum
computing? - ✔️✔️going out and trying it and thinking about what they can do with it
What does the professional say is ultimate task of quantum computer scientists? -
✔️✔️"build a nearly perfect computer out of a whole bunch of imperfect parts"
What does the professional describe as "THE challenge" that frustrates so many people
about quantum computing? - ✔️✔️decoherence
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