Quantum Computing
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First edit.
Awarded 646 times.
Need some help with Purity calculation
Awarded 10 hours ago
Qiskit - Z expectation value from counts?
Awarded 12 hours ago
Need some explanation about a notation in Grover's algorithm
Awarded yesterday
Problem with commutation of $e^{-iH_1t}$ and $e^{-iH_2t}$, where $H_1$ commutes with $H_2$
Awarded 2 days ago
Gate Y returns wrong phase in IBM's circuit composer
Awarded Apr 2 at 15:00
Measuring qubits in QuTiP
Awarded Apr 2 at 14:05
Is quantum computing apropriate for video encoding?
Awarded Apr 1 at 22:50
Construct a orale for XOR
Awarded Apr 1 at 15:20
Rotations to encode $f(x)$ into ancilla qubit for quantum Monte Carlo
Awarded Mar 30 at 15:25
Why is Hilbert space considered especially large?
Awarded Mar 27 at 11:40
Qubit in a mix sin/cosine state
Awarded Mar 26 at 23:55
How can I calculate the probability of a quantum system in superposition to be in the “up” state?
Awarded Mar 25 at 16:55
Installing Q# in jupyter
Awarded Mar 25 at 16:30
(post deleted or otherwise unavailable)
Awarded Mar 25 at 15:05
May I deploy my C# code to Q# Azure quantum computing?
Awarded Mar 24 at 17:45
Error while running Quantum Teleportation Algorithm on real device using qiskit on IBM-Q
Awarded Mar 23 at 14:55
Eigenvalue and eigenvector in Qiskit
Awarded Mar 22 at 21:15
Cost of controlled-$U_i$
Awarded Mar 14 at 23:15
(post deleted or otherwise unavailable)
Awarded Mar 14 at 11:55
Mitigating the noise in a quantum circuit
Awarded Mar 13 at 12:15
Quantum Fourier Transform without SWAPs
Awarded Mar 13 at 0:15
(post deleted or otherwise unavailable)
Awarded Mar 10 at 9:50
Similarity Transformations on Pauli Operators in 2-qubit states (eq. 11 - Farhi's QNN Paper)
Awarded Mar 9 at 7:20
How to get Bloch sphere angles given arbitrary qbit as linear combination of basis vectors?
Awarded Mar 8 at 1:10
(post deleted or otherwise unavailable)
Awarded Mar 5 at 3:15
Qiskit visualizations module not installed but qiskit package installed. Why?
Awarded Mar 4 at 15:50
Make a doubly controlled gates from existing operations
Awarded Mar 4 at 13:40
Qiskit statevector_simulator returns different results
Awarded Feb 29 at 13:55
Are $\mathrm{cRz}$ with angle $\pi$ and $\mathrm{cZ}$ equal on the IBM Quantum Experience?
Awarded Feb 28 at 9:45
How is the theory of modular representation involved with error-correction?
Awarded Feb 27 at 22:20
No Schmidt decomposition for tripartite states
Awarded Feb 25 at 20:20
Changing qubits coefficients to trigonometric functions in Grover Algorithm
Awarded Feb 24 at 19:05
computing a quantum circuit by hand (CNOT on non-computational basis states)
Awarded Feb 24 at 16:00
The Clock Speed for the Quantum Computers
Awarded Feb 24 at 12:05
Is there anything that can be programmed on a classical computer but not on a quantum computer?
Awarded Feb 23 at 18:40
Why IBM Quantum Experience is giving different results under ibmq_qasm_simulator and ibmq_16_melbourne?
Awarded Feb 20 at 21:40
Is back in time (classical) information transfer possible (based on delayed choice entanglement swapping)?
Awarded Feb 19 at 7:50
How to prepare mixed states on a quantum computer?
Awarded Feb 19 at 3:55
Which of the Jozsa axioms does the Hilbert-Schmidt inner product violate?
Awarded Feb 18 at 16:40
Does the quantum Fourier transform have many applications beyond period finding?
Awarded Feb 17 at 10:35
Achieve a control gate with 2 hadamard coins
Awarded Feb 15 at 18:05
Magnitudes and phases of coefficients of a qubit
Awarded Feb 14 at 3:20
Applying density matrix based criterion to verify separability
Awarded Feb 12 at 0:35
What observable do we measure at the end of a quantum search algorithm?
Awarded Feb 11 at 15:50
How do we discard or delete or resuse a qubit at the end, on Qiskit?
Awarded Feb 7 at 20:50
Why QFT can be replaced by Hadamard gates?
Awarded Feb 7 at 11:00
Installing Qiskit Error: Building wheel failed!
Awarded Feb 7 at 1:50
Quantum computing w.r.t. the many-worlds theory [duplicate]
Awarded Jan 30 at 16:50
PennyLane operations - Kerr, Displacement and Squeeze
Awarded Jan 28 at 11:35
Does the massive parallelization in Quantum computing imply parallelization of input (as opposed to Turing machine)?
Awarded Jan 28 at 7:10
Strange Behaviour of MeSolve, McSolve
Awarded Jan 27 at 12:15
Quantum state discrimination and lower bound for conditional von Neumann entropy
Awarded Jan 27 at 0:35
Controlled NOT gate using multiple control qubits in Q#
Awarded Jan 26 at 16:20
Vey different results between qasm_simulator and quantum computer
Awarded Jan 26 at 13:35
What is the difference between the “Fubini-Study distances” $\arccos|\langle\psi|\phi\rangle|$ and $\sqrt{1-|\langle\psi|\phi\rangle|}$?
Awarded Jan 25 at 0:25
Can two intrinsic angular momentum directions (spin) be used for future entanglement after collapse? [closed]
Awarded Jan 23 at 19:35
Code for a simple optimization problem in Criq
Awarded Jan 20 at 13:35
How many real-valued coefficients does it take to specify an $n$-qubit state?
Awarded Jan 19 at 2:00
Implementing four oracles for the Deutsch Algorithm (preferably on IBM Q Experience)
Awarded Jan 18 at 2:00
Implementing four oracles for the Deutsch Algorithm (preferably on IBM Q Experience)
Awarded Jan 18 at 2:00
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