Quantum Computing
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First edit.
Awarded 834 times.
Eigenvalues of a quantum state after partial tracing
Awarded 22 hours ago
Where does $xy = a + b \pmod 2$ come from in the context of CHSH inequalities?
Awarded yesterday
Calculating outcomes of projective measurements
Awarded yesterday
How to re-execute failed jobs in qiskit?
Awarded Sep 20 at 17:33
Qiskit implementation for MPS
Awarded Sep 20 at 8:41
(post deleted or otherwise unavailable)
Awarded Sep 19 at 18:32
Custom Gate/Instruction with classical bits in Qiskit
Awarded Sep 18 at 6:16
CNOT expressed with CZ and H gates by taking into account HZH =X
Awarded Sep 17 at 7:56
Counting Achievable Operations
Awarded Sep 15 at 15:05
What would be measured if you measure two entangled qubits at exactly the same time?
Awarded Sep 15 at 1:50
Effect of quantum entanglement on measurement
Awarded Sep 13 at 22:17
Can one use a quantum circuit as a pathfinding algorithm?
Awarded Sep 13 at 14:35
Is entanglement nonincreasing on average by local operations for all possible ensemble decompositions?
Awarded Sep 12 at 19:40
Question regarding soundness bound in QMA versus QCMA separation
Awarded Sep 11 at 15:26
How to plot histogram using statevector simulator?
Awarded Sep 10 at 22:15
Qiskit: Add a standard gate to circuit from a string
Awarded Sep 10 at 18:40
Error associated with HTTPSConnectionPool
Awarded Sep 10 at 14:21
What is the elementary gate set for ion-trap quantum computers?
Awarded Sep 8 at 15:56
What is the output of applying the Hadamard matrix to $\sum_{y\in\{0,1\}^n} (-1)^{xy}|y\rangle$?
Awarded Sep 8 at 12:17
Getting an error running a program in IBM Q Experience Quantum lab
Awarded Sep 8 at 10:17
Is the Haar measure invariant under conjugation?
Awarded Sep 7 at 22:52
How to calculate distance of $k=0$ stabilizer code?
Awarded Sep 7 at 18:40
Prove that Shannon and von Neumann entropies satisfy $H(P)\ge S(\rho)$ with $P$ diagonal of $\rho$
Awarded Sep 6 at 16:57
(post deleted or otherwise unavailable)
Awarded Sep 4 at 20:35
Command errored out with exit status 1 while installing the editable env for qiskit terra
Awarded Sep 4 at 11:42
What is meant by “local minimum” in QAOA?
Awarded Sep 3 at 17:05
What is the query complexity of the QUBO algorithm?
Awarded Sep 3 at 8:26
How can I create an arbitrary superposition state of two qubits in Qiskit?
Awarded Sep 1 at 11:20
(post deleted or otherwise unavailable)
Awarded Aug 30 at 20:15
In $|x_1,…,x_n\rangle$, can the individual constituents be called qubits?
Awarded Aug 29 at 2:26
(post deleted or otherwise unavailable)
Awarded Aug 27 at 1:47
Optimization using Quantum Logics
Awarded Aug 26 at 21:21
Optimize chains of single-qubit u1, u2, u3 gates by combining them into a single gate in Qikist
Awarded Aug 26 at 19:21
Number of Qubits Required for Simulation of Caffeine and Penicillin Molecules
Awarded Aug 26 at 16:33
Grover's 3-qubits tutorial: Why we need the last X gates
Awarded Aug 24 at 16:27
Hadamard Test to calculate imaginary part
Awarded Aug 24 at 7:20
Trouble importing Qiskit
Awarded Aug 23 at 14:36
Hadamard direct mapping of input to output in $\theta$ and $\varphi$ form
Awarded Aug 20 at 10:28
Terminology: what do $|i\rangle$ and $|\mbox{-}i\rangle$ represent?
Awarded Aug 17 at 20:06
What's the relation between the sign of error correction code and commute of operators?
Awarded Aug 17 at 19:56
How to calculate distance of $k=0$ stabilizer code?
Awarded Aug 17 at 0:11
Existence of multiple job monitor in qiskit
Awarded Aug 12 at 8:01
Qiskit error on get_backend()
Awarded Aug 12 at 7:18
How to initialize a random state in Qiskit?
Awarded Aug 12 at 0:51
How to do state tomography when using sampling in Qiskit?
Awarded Aug 10 at 11:36
(post deleted or otherwise unavailable)
Awarded Aug 10 at 8:06
What are known applications of quantum sampling?
Awarded Aug 10 at 5:37
Alternative derivation of $P(\text{First qubit}=0)$ for the swap test
Awarded Aug 8 at 13:31
Qiskit: Initializing n qubits with binary values (0s and 1s)
Awarded Aug 8 at 7:36
Why an element of SU(2) acts as a rotation for Majorana representation of states?
Awarded Aug 4 at 18:57
Making custom gate in Qiskit?
Awarded Aug 4 at 6:51
(post deleted or otherwise unavailable)
Awarded Aug 2 at 6:41
How do we perform a measurement of an arbitrary 1-qubit quantum state in any arbitrary orientation?
Awarded Aug 1 at 5:06
Form and effect of the intrinsic Hamiltonian on the IBM machines
Awarded Jul 30 at 13:37
Installing Qiskit Error: Building wheel for ecos error
Awarded Jul 29 at 19:46
IBMQ_Melbourne Readout error
Awarded Jul 29 at 19:00
Prove that QFT and Walsh-Hadamard gates give the same output when acting on $\lvert x\rangle\lvert 0\rangle$ [duplicate]
Awarded Jul 29 at 0:47
Is the restriction of a strictly contractive channel (SCC) to a subspace necessarily still SCC? (impossibility of perfect QEC for SCCs)
Awarded Jul 28 at 9:46
How to do the direct evaluation by hand in QAOA algorithm
Awarded Jul 27 at 3:12
How to create the logical $|0_L\rangle$ state for the Steane's 7-qubit code?
Awarded Jul 24 at 7:17
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