Quantum Computing
Sanchayan Dutta's user avatar
Sanchayan Dutta's user avatar
Sanchayan Dutta's user avatar
Sanchayan Dutta
  • Member for 5 years, 9 months
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129 Answers

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107 votes

Is quantum computing just pie in the sky?

28 votes
Accepted

How are quantum gates implemented in reality?

26 votes
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Why is it important to eliminate the garbage qubits?

23 votes

How does bra-ket notation work?

22 votes
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Currently, what are the best structured courses available online on quantum computing?

20 votes
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How to input 2 qubits in 2 Hadamard gates?

19 votes
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Quantum circuits explain algorithms, why didn't classical circuits?

17 votes
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If quantum gates are reversible how can they possibly perform irreversible classical AND and OR operations?

16 votes
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What is the physical representation of a qubit?

15 votes

Is there any general statement about what kinds of problems can be solved more efficiently using a quantum computer?

14 votes

Why can the Discrete Fourier Transform be implemented efficiently as a quantum circuit?

13 votes
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Implementing "Classical AND Gate" and "Classical OR Gate" with a quantum circuit

13 votes
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What does "bipartite" mean?

12 votes

The algorithm of the new quantum factoring record 1,099,551,473,989

12 votes
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What is the meaning of the state $|1\rangle-|1\rangle$?

11 votes
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Does a study guide exist that starts from a "purely CS background" and advances towards "making a new quantum programming language"?

11 votes
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How to implement the 4 Bell states on the IBM Q (composer)?

11 votes

Density matrices for pure states and mixed states

10 votes
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Measuring in standard basis meaning

9 votes
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What kind of real-world problems (excluding cryptography) can be solved efficiently by a quantum algorithm?

9 votes

How do you write a simple program for a D-Wave device?

9 votes
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Representation of real numbers in quantum computers

9 votes
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What can we learn from 'quantum bogosort'?

9 votes
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Significance of the term "diffusion" in Grover's diffusion operator

8 votes

Why are $d^2$ dimensions required to describe a density matrix?

8 votes
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What applications does Grover's Search Algorithm have?

8 votes

What is the purpose of the TDG gate in QISKit?

7 votes
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What is the matrix of the iSwap gate?

7 votes
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What happens with first phase factor in QFT?

7 votes
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What is the meaning of writing a state in its Bloch representation?

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