Quantum Computing

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Answer your own question with score of 3 or more.
Awarded 63 times.
What's the notion of input size for Quantum Verification?
Awarded 2 days ago
Generalization of optimality of Grover's algorithm for an arbitrary number of marked elements
Awarded Oct 8 at 6:09
What is the original reference for the Hadamard test?
Awarded Jun 11 at 9:28
How do I get correct measurement probabilities in ZX calculus?
Awarded Jun 8 at 12:18
Continued fractions with Shor's algorithm: which convergent?
Awarded Apr 18 at 19:58
How to tell whether two given quantum codes are equivalent?
Awarded Apr 11 at 9:41
get_statevector() not working with Qiskit Aer's statevector simulator
Awarded Nov 8, 2022 at 15:06
Why is the triangle finding problem important?
Awarded Nov 7, 2022 at 23:33
Measuring entanglement entropy using a stabilizer circuit simulator
Awarded Jul 12, 2022 at 5:57
Angular Error associated with Quantum Search Algorithm
Awarded Jun 25, 2022 at 12:35
Controlled phase shift gate
Awarded Jun 9, 2022 at 8:56
Is there a closure property for the entire Clifford hierarchy?
Awarded May 20, 2022 at 14:56
How to formulate Dynamical Decoupling passes in Qiskit to improve result upon circuit execution
Awarded Apr 12, 2022 at 9:57
How did Lov Grover think up his search algorithm? How might one have discovered it themselves?
Awarded Feb 6, 2022 at 14:56
What is the computational complexity of quantum annealing?
Awarded Dec 14, 2021 at 7:40
What does it mean for a channel to be independent of the input state?
Awarded Sep 20, 2021 at 9:42
ZX-calculus: pi-copy rule not required for completeness?
Awarded Sep 10, 2021 at 10:34
How universal is the Toffoli gate for classical reversible computing?
Awarded Sep 9, 2021 at 11:36
What are the constraints for the coefficents of the basis states in quantum computing?
Awarded Jul 23, 2021 at 17:43
Updating qiskit doesn't update qiskit version using jupyter notebook/terminal
Awarded Jul 20, 2021 at 7:10
Qiskit Portfolio Optimization Application
Awarded May 6, 2021 at 7:52
Filtering a set of results obtained from job manager
Awarded Apr 15, 2021 at 20:52
Quantum Supremacy: Some questions on cross-entropy benchmarking
Awarded Apr 4, 2021 at 1:37
How many ancilla qubits to use with Multiple-Control Toffoli (mct) gate in Qiskit?
Awarded Apr 3, 2021 at 4:16
Pennylane: creating QNodes for large numbers of circuits that only differ by number of wires
Awarded Apr 1, 2021 at 3:06
Distance calculation between two vectors
Awarded Mar 16, 2021 at 9:15
Are there emulators for quantum networks?
Awarded Mar 11, 2021 at 22:40
How do I calculate the von Neumann entropy of a pure one-qubit density matrix?
Awarded Mar 4, 2021 at 12:17
Intuition behind the use of inverse FFT in Quantum Circuit for Hamming weight
Awarded Mar 1, 2021 at 20:05
Diagrammatic Quantum Reasoning: Proving the loop equation using yanking equations
Awarded Jan 31, 2021 at 20:55
Why after transpiling a Qiskit circuit we obtain a different result?
Awarded Nov 29, 2020 at 15:50
How to change the names of the registers displayed with circuit_drawer (output='mpl')
Awarded Nov 25, 2020 at 15:40
How can you decompose Grover's diffusion operator into gates?
Awarded Aug 19, 2020 at 23:20
Preparing a quantum state from a classical probability distribution
Awarded Aug 6, 2020 at 8:45
How to do quantum circuit arithmetic?
Awarded Jun 6, 2020 at 13:47
What are examples of quantum computing platforms availble for free (other than IBM Q)?
Awarded Apr 29, 2020 at 9:16
Matrix mod 2 multiplication
Awarded Apr 14, 2020 at 1:45
Can we combine the square roots inside the definition of the fidelity?
Awarded Apr 10, 2020 at 8:15
Can we capture phase in IBM Quantum Experience?
Awarded Feb 24, 2020 at 20:25
Give an explicit example of a $d = 4$ SIC-POVM
Awarded Nov 26, 2019 at 12:20
Why can we forget about the ancilla bit in Grover's algorithm?
Awarded Oct 16, 2019 at 23:25
Implementing the one-bit Deutsch Oracle algorithm using phase
Awarded Oct 10, 2019 at 9:20
How to unpickle a Result object returned by an IBMQ experiment?
Awarded Sep 29, 2019 at 20:45
How are orthogonal sets of pure states arranged in state space?
Awarded Jun 11, 2019 at 9:05
Implementing "Classical AND Gate" and "Classical OR Gate" with a quantum circuit
Awarded Jun 4, 2019 at 22:15
Why is the efficiency of Ekert 91 Protocol 25%?
Awarded May 13, 2019 at 16:00
Why can't you run a teleportation circuit on an IBM Q device?
Awarded Jan 13, 2019 at 22:10
How to implement Grover's diffusion operator when starting with a W state?
Awarded Dec 19, 2018 at 10:10
Mapping Algebraic Normal Form of Exclusive Sum of Products to Toffoli Network
Awarded Nov 10, 2018 at 18:05
Can we use quantum machines to reduce space complexity of deterministic turing machines?
Awarded Oct 23, 2018 at 12:30
Can a quantum computer easily determine the mixing time of the Rubik's cube group?
Awarded Aug 27, 2018 at 8:55
Minimum number of CNOTs for Toffoli with non-adjacent controls
Awarded Aug 7, 2018 at 14:50
Is entanglement necessary for quantum computation?
Awarded Jul 11, 2018 at 7:28
Nielsen & Chuang Exercise 2.1 - "Linear dependence: example"
Awarded Jun 21, 2018 at 9:54
Implementation of the oracle of Grover's algorithm on IBM Q using three qubits
Awarded Jun 3, 2018 at 16:30
How can I implement an n-bit Toffoli gate?
Awarded May 29, 2018 at 2:30
When was the first use of the word Entanglement?
Awarded May 20, 2018 at 8:01
Using a fractional number of classical bits within quantum teleportation
Awarded May 12, 2018 at 14:11
Is it true to say that one qubit in an entangled state can instantaneously affect all others?
Awarded May 12, 2018 at 14:11
What is the status of quantum computing compared with other (photonic) quantum technologies?
Awarded May 10, 2018 at 7:52
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