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Top Questions

0 votes
0 answers
14 views

Mutual information of shared state is larger than expectation values

3 votes
4 answers
1k views

Can Shor‘s code correct two- or three-qubit errors?

-1 votes
0 answers
25 views

How do I implement matrix factorization using Qiskit or Pennylane

0 votes
1 answer
61 views

The Output of Transversal Bell Measurement in Knill's Method of Fault-Tolerant Error Correction (FTEC)

0 votes
1 answer
28 views

Litinsky's fast block scheme: should the tile count also include the number of **purified** magic-states

1 vote
2 answers
70 views

Is there a way to perform Zero Noise Extrapolation with qiskit without using the runtime service?

2 votes
1 answer
33 views

Quantum homomorphic encryption with a classical verifier - clarifying the setting?

2 votes
0 answers
45 views
+50

Equivalencies between neural networks and quantum neural networks

0 votes
1 answer
24 views

Matrices size of n-qubit controlled gates and n+2 states qubit?

1 vote
0 answers
56 views
+50

How comes the constraint $\sum_{n, m \neq 1} \chi_{n m} \Upsilon_m^{\dagger} \Upsilon_n=0$?

0 votes
0 answers
21 views

Number of logical cycles to implement $R_Z(\theta)$ gates in lattice surgery: why isn't it the number of layers $\times$ the $T$-count in $R_Z$?

0 votes
1 answer
43 views

Netlist of the transpiled circuit in Qiskit

0 votes
1 answer
18 views

How to get line fits from sinter.plot_error_rate to calculate logical error rate as function of physical

2 votes
1 answer
56 views

Underlying Hamiltonians and pulse level controls of different commercially available quantum computers

5 votes
2 answers
61 views

Decomposition of a $4 \times 4$ unitary matrix

1 vote
1 answer
103 views

Problem with eigenvalue evaluation algorithm application on matrix $U$

1 vote
1 answer
36 views

Q#: how to write an algorithm in modular form (I don't understand the syntax and the documentation is a bit obscure)

3 votes
1 answer
91 views

How much complexity is required to implement $\text{C$_\Pi$NOT}$ gate?

1 vote
1 answer
21 views

Applying Hadamard on inexistent qubit doesn't make Q# compilation fail: why?

1 vote
1 answer
25 views

Understanding command Ignore in Q#

1 vote
0 answers
18 views

Role of eavesdroppers in B92 of phase modulation

1 vote
0 answers
23 views

Effect of error correction gates in QCNN

2 votes
1 answer
52 views

Relation between number of measurements and trace error

1 vote
1 answer
31 views

How many times the circuit need to run when i use get_stateVector in qiskit

2 votes
0 answers
44 views

Are there quantum algorithms to estimate the partial transpose?

6 votes
2 answers
159 views

Equivalence checking of quantum circuits up to error

3 votes
1 answer
101 views

Is there any reason to use optical qubits instead of hyperfine qubits?

2 votes
2 answers
78 views

How is the $\beta$-matrix interpreted in single qubit QPT?

0 votes
1 answer
60 views

How to perform below operation in Qiskit?

2 votes
2 answers
161 views

What role does Landauer's principle play in quantum reversibility?

0 votes
1 answer
44 views

Clarification on Definitions of Relaxation Probabilities

2 votes
1 answer
65 views

Is a process matrix of rank $1$ unique?

0 votes
1 answer
50 views

How to show that the GHZ state is absolutely maximally entangled?

4 votes
2 answers
322 views

How to convert a partially entangled state into maximally entangled using SLOCC

0 votes
1 answer
36 views

Frequency of qubits in qiskit simulators

2 votes
2 answers
104 views

Preparation of logical state with qLDPC code

1 vote
1 answer
75 views

Solving max/min problem for graphs based on Grover

0 votes
1 answer
52 views

Can you apply a CNOT gate on qubits in MBQC that aren´t next to each other?

0 votes
1 answer
280 views

Amplitude Embedding using Qiskit

1 vote
1 answer
142 views

How to do error correction after encoded Bell measurement?

0 votes
1 answer
34 views

Can we get which error mechanisms acutually happens in Stim?

1 vote
1 answer
141 views

Reflection operator in amplitude amplification for block encoding

1 vote
0 answers
10 views

Outputing classification probability from the Qiskit VQC

1 vote
0 answers
18 views

Measuring a single-qubit PauliZ using Qiskit's EstimatorQNN

1 vote
1 answer
25 views

Quantum improvement in collision-free ID assignment problem?

3 votes
1 answer
850 views

ImportError when setting up PySCF driver

2 votes
1 answer
290 views

how can we save a model using qiskit_machine_learning?

3 votes
1 answer
62 views

What are the postulates of Continuous Variable Quantum Computing?


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