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quest
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2 votes
3 answers
1k views

Toffoli Gate Matrices

2 votes
2 answers
882 views

Density Matrix of 3 Qubit Quantum Circuit (Qiskit Density Matrix)

2 votes
1 answer
783 views

How to find the Kraus operators from the process matrix?

1 vote
1 answer
530 views

Understanding Hamiltonian's of the Single Qubit Gates and Toffoli gate

3 votes
1 answer
530 views

Cirq: n-qubit GHZ state

0 votes
1 answer
387 views

How to write the Kraus representation for many-qubit states?

1 vote
1 answer
365 views

Writing Toffoli Gate Matrix by one and two qubit gate matrices

1 vote
1 answer
279 views

Is there any map between Phenomenological Noise Model and Circuit Based Noise Model?

1 vote
1 answer
268 views

Cirq-Measuring a State with Rotation Matrix

1 vote
1 answer
263 views

Producing $|ghz\rangle\langle ghz|$ State in Cirq

0 votes
1 answer
246 views

Are quantum gates superoperators? How to write a quantum circuit as superoperator?

0 votes
2 answers
240 views

Qiskit's draw method is moves the gates on the qubit wires

1 vote
1 answer
229 views

Pymatching Toric Code vs Surface Code

0 votes
1 answer
228 views

Pymatching, Parity Check Matrix with Syndrome Measurements and Detection Events

0 votes
1 answer
225 views

Qiskit: Sum of Kraus operators are not equal to identity matrix

1 vote
2 answers
199 views

Why is the Measurement Result Always 1? (expected to find uniformly random measurement)

2 votes
1 answer
178 views

Qutip choi_to_kraus and to_kraus functions are not returning list of Kraus representation

2 votes
1 answer
162 views

From Hamiltonian to the Pulse Sequence

1 vote
1 answer
145 views

Bit Flip, Separable state and Several Question about Cirq

1 vote
1 answer
141 views

is it possible to use STIM for non-clifford circuits?

2 votes
1 answer
134 views

Design NISQ Circuit with StrawberryFields

0 votes
1 answer
130 views

Check_matrix in Pymatching and Understanding the Plot

1 vote
2 answers
128 views

What are the libararies for Machine Learning on NISQ Chip? And What are the roadmaps?

2 votes
1 answer
128 views

Can we write CNOT gate in terms of Quaternion?

1 vote
2 answers
123 views

How to Switch Toric Code to Surface Code (no using STIM!)

2 votes
1 answer
122 views

Hadamard gate for qudit (dimesion 8)

1 vote
0 answers
121 views

How is the third-order autocorrelation measured in quantum optics?

2 votes
1 answer
118 views

Cirq: Result of rotating qubit measurements never come [0 1] or [1 0 ], always come as [0,0] or [1,1]

2 votes
0 answers
84 views

How to use stabilizers to simulate the circuit?

1 vote
0 answers
84 views

How to show numerically that a subgroup of SU(2) and CNOT gate can give us a finite group?