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Sanchayan Dutta's user avatar
Sanchayan Dutta's user avatar
Sanchayan Dutta's user avatar
Sanchayan Dutta
  • Member for 6 years, 3 months
  • Last seen this week
108 votes

Is quantum computing just pie in the sky?

28 votes
Accepted

How are quantum gates implemented in reality?

27 votes
Accepted

Why is it important to eliminate the garbage qubits?

23 votes

How does bra-ket notation work?

23 votes
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What are the best structured courses available online on quantum computing?

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

20 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?

16 votes

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

15 votes

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

14 votes
Accepted

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

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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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

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

9 votes
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Where does precisely the difficulty in exponentiating a Hamiltonian $H$ in the quantum simulation problem lay?

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

9 votes
Accepted

What applications does Grover's Search Algorithm have?

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
Accepted

What can we learn from 'quantum bogosort'?

8 votes

What is the purpose of the TDG gate in QISKit?

8 votes

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

8 votes

What is "linear" in linear entropy?

7 votes

Resources to study quantum algorithms and quantum complexity

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