User Vinay Sharma

6 votes

3 answers

3k views

does CNOT gate cause entanglement?

asked Apr 5, 2022 at 11:47

6 votes

1 answer

3k views

What is the difference between "maximally entangled" and "entangled" states?

asked May 30, 2022 at 12:45

4 votes

2 answers

572 views

Why doesn't Z-gate change phase of |0⟩

asked Jul 24, 2022 at 2:24

4 votes

2 answers

858 views

How does interference help to bias the measurement of a qubit towards a desired state?

asked Aug 3, 2022 at 8:17

3 votes

2 answers

536 views

To program Grover algorithm oracle, we need to know the answer already, if we know the answer then what else do we need?

asked Jul 27, 2022 at 13:15

3 votes

1 answer

459 views

Why do we have only 3 Pauli gates X, Y and Z

asked May 18, 2022 at 13:49

2 votes

3 answers

156 views

What is the difference between $|+\rangle$ and $|-\rangle$?

asked May 18, 2022 at 11:32

2 votes

1 answer

277 views

Why are qubits represent as unit vectors in an Hilbert space?

asked Jul 21, 2022 at 6:06

2 votes

1 answer

2k views

construction of Y gate from X,Z and H gates

asked Aug 18, 2022 at 4:10

1 vote

1 answer

1k views

How to draw CCZ gate in IBM Quantum composer

asked Aug 13, 2022 at 12:23

1 vote

2 answers

105 views

How is the ket of a quantum state calculated in this code?

asked May 18, 2022 at 12:47

1 vote

1 answer

379 views

ket statevector of a 2-quibit system

asked May 17, 2022 at 12:08

1 vote

1 answer

53 views

Understanding Controlled Operation

asked Jun 17, 2022 at 11:55

1 vote

2 answers

212 views

Why can two atoms can be entangled?

asked Jul 19, 2022 at 6:53

1 vote

1 answer

855 views

ket zero $|0\rangle = [1,\, 0]$, why a qubit which is initialized with zero is 1 in first basis state?

asked May 10, 2022 at 8:38

1 vote

1 answer

1k views

Describe |00> and |10> in terms of |0> and |1>

asked May 12, 2022 at 14:42

0 votes

0 answers

33 views

Why do [1 0 0 1] and [-1 0 0 -1] represent the same physical state? [duplicate]

asked May 12, 2022 at 16:31

0 votes

0 answers

256 views

What is dual space, and why is it required?

asked May 12, 2022 at 8:03

0 votes

0 answers

33 views

what does the multiplication of Quantum state represent? [duplicate]

asked May 12, 2022 at 8:59

0 votes

2 answers

308 views

What is measure_all function and the vertical dotted line represent in the circuit?

asked Apr 8, 2022 at 2:13

0 votes

1 answer

86 views

what is difference between the following two results

asked May 10, 2022 at 4:00

0 votes

2 answers

372 views

understanding QuantumCircuit.x() function

asked May 10, 2022 at 4:44

0 votes

1 answer

67 views

What is the logic behind applying $X$ or $Z$ conditionally to the received bits?

asked Jun 1, 2022 at 12:24

0 votes

1 answer

37 views

are the operation applied in Teleportation circuit fixed?

asked Jun 1, 2022 at 15:16

0 votes

1 answer

461 views

What’s the point of the amplitudes being complex?

asked Jul 21, 2022 at 8:21

0 votes

2 answers

131 views

Why are we getting secret number $50\%$ of time even if there is no negative phase in last qubit?

asked Jul 22, 2022 at 12:00

0 votes

1 answer

100 views

is it possible to reduce complexity of Grover's algorithm to O(1) from O(root n)?

asked Jul 30, 2022 at 13:24

Stack Exchange Network

27 Questions

does CNOT gate cause entanglement?

What is the difference between "maximally entangled" and "entangled" states?

Why doesn't Z-gate change phase of |0⟩

How does interference help to bias the measurement of a qubit towards a desired state?

To program Grover algorithm oracle, we need to know the answer already, if we know the answer then what else do we need?

Why do we have only 3 Pauli gates X, Y and Z

What is the difference between $|+\rangle$ and $|-\rangle$?

Why are qubits represent as unit vectors in an Hilbert space?

construction of Y gate from X,Z and H gates

How to draw CCZ gate in IBM Quantum composer

How is the ket of a quantum state calculated in this code?

ket statevector of a 2-quibit system

Understanding Controlled Operation

Why can two atoms can be entangled?

ket zero $|0\rangle = [1,\, 0]$, why a qubit which is initialized with zero is 1 in first basis state?

Describe |00> and |10> in terms of |0> and |1>

Why do [1 0 0 1] and [-1 0 0 -1] represent the same physical state? [duplicate]

What is dual space, and why is it required?

what does the multiplication of Quantum state represent? [duplicate]

What is measure_all function and the vertical dotted line represent in the circuit?

what is difference between the following two results

understanding QuantumCircuit.x() function

What is the logic behind applying $X$ or $Z$ conditionally to the received bits?

are the operation applied in Teleportation circuit fixed?

What’s the point of the amplitudes being complex?

Why are we getting secret number $50\%$ of time even if there is no negative phase in last qubit?

is it possible to reduce complexity of Grover's algorithm to O(1) from O(root n)?