user avatar
user avatar
user avatar
Yitian Wang
  • Member for 1 year, 9 months
  • Last seen more than a month ago
7 votes
Accepted

Where is the parallelism in Deutsch-Jozsa algorithm?

4 votes
Accepted

Nielsen&Chuang 5-qubit quantum error-correction encoding gate

4 votes

How to perform the unitary transformation $U|i,j_1\rangle = 1/\sqrt{k}(|i,j_1\rangle+|i,j_2\rangle+|i,j_3\rangle...+|i,j_k\rangle)$?

4 votes

In quantum computation, if the fidelity is high enough to promise over 50% success rate, is quantum error-correction still needed?

3 votes

How can I verify that the Pauli group is a group? And is it abelian?

3 votes

Shor's algorithm: initialization of second register

2 votes

What is the probability of error in quantum fingerprinting using cswap test?

2 votes

Expected value in a VQE qiskit

2 votes

Getting started with Quantum Machine Learning

2 votes

Why isn't output of Deutsch–Jozsa Algorithm simply $|0\rangle$?

2 votes

Which Gate set can be used to perform the function $U|0\rangle =\frac{1}{\sqrt{n}}\sum_{i=0}^{n}(|i\rangle)$?

2 votes

Transforming $|100\rangle$ state into $|000\rangle + |111\rangle$ state using only Hadamard and CNOT gates

2 votes
Accepted

How to get subspace of quantum circuit?

1 vote

Is there an explanation for why, to search through an unstructured database, the average number of checks is $\frac{N}{2}$ in classical computation?

1 vote

Produce a quantum state with its density matrix an identity matrix up to an constant

1 vote

Grover's algorithm: a real life example?

1 vote
Accepted

Traveling salesman problem in Qiskit: cannot find a solution on simulator

1 vote

Further entangling two ebits to obtain $|0000\rangle + |1111\rangle$ state

1 vote

What are the properties of the matrices representing quantum gates?

1 vote

Is it possible to plot the average counts from two jobs with multiple circuits on a single histogram in Qiskit?

1 vote

Is there such a quantum oracle that makes the oracle corresponding to the function sigmoid?

1 vote
Accepted

Estimating imaginary part of an inner product of two quantum states

1 vote
Accepted

CSS Code and Fault-tolerant Problem in Nielsen and Isaac Chuang‘s book

1 vote

How to make the gate decomposition of CCCRY

1 vote

Check if $|\psi\rangle$ is equal to a fixed basis state using the standard set of gates

1 vote
Accepted

How does feedback work in simple Grovers algorithm where $n=4$?

0 votes

Find probability of a single qubit's measurement results from a 5 qubit state

0 votes

Import Qiskit fails

0 votes
Accepted

Get state vector of a single qubit in a circuit in Qiskit

0 votes

How to learn parameters in a quantum circuit, given an interference pattern?