Quantum Computing

Student

 Student
First question with score of 1 or more.
Awarded 3313 times.
Can you project on an orthogonal basis for a multipartite system using only local measurements and classical communication?
Awarded 16 hours ago
Convolution using QFT with 2 vectors
Awarded yesterday
Is there a Qutip equivalent of "expand_operator" for superoperators?
Awarded 2 days ago
Proof of the 4.11 exercise in the Nielsen & Chuang book
Awarded 2 days ago
How do I find the reduced density matrix of a system where two people share one qubit and have one qubit of their own?
Awarded 2 days ago
4 qubit QFT decomposition in the qiskit textbook
Awarded 2 days ago
Why EfficientSU2 in QGAN
Awarded Sep 27 at 5:40
Knapsack problem formulation
Awarded Sep 27 at 5:40
What exactly does state preparation mean in quantum computing?
Awarded Sep 25 at 6:41
MissingOptionalLibraryError: "The 'pdflatex' library is required to use 'LaTeX circuit drawing' [closed]
Awarded Sep 22 at 22:49
Calculating the Expectation Value After Mid-Circuit Measurements in Qiskit
Awarded Sep 21 at 12:32
Quantum error correction terminology
Awarded Sep 21 at 6:51
Complexity of the quantum circuits that are needed to implement communication protocol?
Awarded Sep 20 at 14:57
Superposition on a subset of integers [duplicate]
Awarded Sep 20 at 8:51
Does proximity of two bipartite states in a norm force high overlap between the elements of the Schmidt bases?
Awarded Sep 19 at 8:32
How can entanglement deal with individual attack in QKD?
Awarded Sep 18 at 15:31
Quantum computation of classical Fisher information
Awarded Sep 18 at 8:40
Weird behavior when simulating vacuum Rabi oscillation on QuTip
Awarded Sep 18 at 8:17
(post deleted or otherwise unavailable)
Awarded Sep 18 at 8:17
Why is 3-Coloring in PQMA(2)?
Awarded Sep 17 at 17:05
Statevector from Density matrix of non-pure state
Awarded Sep 16 at 13:34
How does error accumulate when entangling two distant qubits with limited connectivity?
Awarded Sep 13 at 21:07
Why can't we use a two-qubit entangled state to send information faster than light? [duplicate]
Awarded Sep 13 at 8:26
How to eliminate the global phase of a state vector?
Awarded Sep 12 at 22:45
Is {U, CZ, S} universal for quantum computation, for appropriate single qubit unitary U?
Awarded Sep 12 at 4:20
Prove the fidelity equals $F( \rho , \sigma) = |\langle \psi_{\rho} | \psi_{\sigma}\rangle|^2$ for pure states
Awarded Sep 11 at 19:19
Is it possible to convert a qudit to a qubit?
Awarded Sep 11 at 12:52
(post deleted or otherwise unavailable)
Awarded Sep 11 at 12:52
What is the hidden subgroup in Deutsch-Jozsa?
Awarded Sep 9 at 17:09
Half Adder using CNOT Gates
Awarded Sep 9 at 7:11
Density matrix and State vector give different result in mesolve in QuTiP
Awarded Sep 8 at 8:04
What is complete structures of the photonic quantum computers?
Awarded Sep 8 at 7:18
QPU vs. Solvers
Awarded Sep 7 at 9:17
Math Behind $X$ Gate With Arbitrary Phase is equivalent to $ZXZ$ Gate
Awarded Sep 7 at 5:43
Given $f: \{0, 1\}^n\to\{0, 1\}^m$, how many qubits are needed to implement the oracle $\mathcal U|x,0\rangle^{\otimes m}=|x,f(x)\rangle$?
Awarded Sep 5 at 8:18
Unitarity of a matrix in the EPR experiment
Awarded Sep 4 at 12:39
How could I get this lemma about stoquastic hamiltonian in the paper "Complexity of stoquastic frustration-free Hamiltonians"
Awarded Sep 4 at 6:42
How can I derive the very basic formulas used in Grover's algorithm?
Awarded Sep 4 at 6:22
What are the practical applications of quantum computing in engineering by the year 2030?
Awarded Sep 2 at 15:42
Representing networks with qubits as edges
Awarded Sep 1 at 19:40
Non-unitary projection on Qiskit
Awarded Sep 1 at 15:10
Quantum Crosstalk in gate scheduling with different gates
Awarded Sep 1 at 6:04
Problems trying to plot the classical Fisher information with Pennylane
Awarded Aug 31 at 9:06
How to design a circuit which produces the state $|\psi\rangle = \frac{1}{2}|{010}\rangle + \frac{\sqrt{3}}{2} |{101}\rangle$?
Awarded Aug 31 at 8:57
Stinespring Representation
Awarded Aug 31 at 6:48
How to get parity check matrix from a circuit in stim
Awarded Aug 31 at 6:17
Can a density operator be written equivalently as $\rho=\sum_i p_i|\psi_i〉\!\langle\psi_i|$ and $\rho=\sum_i\lambda_i|\psi_i\rangle\!\langle\psi_i|$?
Awarded Aug 30 at 12:46
Can quantum superposition be thought of as a quantized version of classical bits?
Awarded Aug 30 at 12:10
What is the total number of qubits required for the Harrow-Hassidim-Lloyd algorithm?
Awarded Aug 30 at 10:04
Pennylane variational classifier demo - need for padding
Awarded Aug 30 at 10:04
Lattice Surgery: how does lattice merging act on the physical qubits?
Awarded Aug 29 at 15:35
What ways are there to use parallelisation in quantum machine learning?
Awarded Aug 29 at 4:58
Output of my quantum circuit to create 3-qubit GHZ-like state does not make sense mathematically
Awarded Aug 27 at 9:46
New QASM2ParseError for old circuit on IBM composer
Awarded Aug 26 at 7:18
Is the inner product operation commutative or associative?
Awarded Aug 25 at 13:37
Adiabatic state preparation for quantum phase estimation
Awarded Aug 25 at 11:31
How to obtain and print the data that is present in classical register after measuring the data of quantum circuit [closed]
Awarded Aug 25 at 5:43
How to represent an entangle state on Bloch Sphere [duplicate]
Awarded Aug 25 at 5:03
Where is the input data X in the CV-QNN as presented in Pennylane?
Awarded Aug 23 at 20:56
Could a quantum computer simulate any system based on different types of logic? [duplicate]
Awarded Aug 23 at 14:18
1
2 3 4 5
…
56

Your privacy

By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy.