Quantum Computing
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Awarded 1023 times.
Kraus representation of a convex combination of CPT maps
Awarded yesterday
Can I understand mixed states using the Bloch sphere? [duplicate]
Awarded 2 days ago
Characteristics of the IBM quantum computer
Awarded Apr 15 at 12:34
Continued fractions with Shor's algorithm: which convergent?
Awarded Apr 15 at 2:59
What is the probability of detecting Eve's tampering, in BB84?
Awarded Apr 14 at 13:55
Exercise 4.6 in Quantum Computing and Quantum Information Nielsen and Chuang
Awarded Apr 13 at 12:57
'Best practices' for making Stim run as fast as possible?
Awarded Apr 11 at 15:41
How can one imagine entanglement in a non-mathematical way?
Awarded Apr 11 at 14:51
Re-initializing qubits in a circuit without losing superposition
Awarded Apr 11 at 12:27
How can we prove that the covariance satisfies $\mathrm{Cov}_\rho(X,Y)=\mathrm{Cov}_\rho(Y,X)$?
Awarded Apr 10 at 22:20
Good book/paper for finding an ansatz via Trotterization?
Awarded Apr 9 at 23:12
Multiplying quantum circuits in cirq using * and computing “expectation values”
Awarded Apr 8 at 14:41
How do I export the rightmost state of circuit wires (qbits and cbits) in a qiskit simulation
Awarded Apr 8 at 13:03
What is the physical unit of the energy calculated using VQE on Qiskit?
Awarded Apr 8 at 8:31
Are spin-glass problems NP (-complete)?
Awarded Apr 8 at 1:20
Do global phases matter when a gate is converted into a controlled gate?
Awarded Apr 7 at 13:25
How to calculate quantum circuit with given quantum state?
Awarded Apr 7 at 11:18
Quantum Katas - Tutorials - SingleQubitGates - Exercise 7 - Preparing an arbitrary state
Awarded Apr 7 at 3:41
How to get eigenvectors of Hamiltonian in OpenFermion
Awarded Apr 7 at 2:17
Does Toffoli AND conjugate affect superposition if used in Shor's algorithm?
Awarded Apr 5 at 0:21
Can we write Pauli-Y gate without even complex part?
Awarded Apr 4 at 19:07
How do I get the Unitary matrix of a circuit without using the 'unitary_simulator'?
Awarded Apr 4 at 11:47
How to upload our dataset using pytorch when it is not present in torchvision?
Awarded Apr 4 at 1:05
Measuring the product is the same as first measuring with one matrix then with the other
Awarded Apr 3 at 17:34
Writing the Jaynes-Cumming model in QuTip
Awarded Apr 2 at 19:56
Does HHL implementation require a priori eigendecomposition?
Awarded Apr 1 at 14:04
Qiskit - Circuit drawing esthatics - can i force the measurements in my circuit show at the end?
Awarded Apr 1 at 13:40
How to get_statevector() with defined gates in Qiskit?
Awarded Apr 1 at 8:51
Understanding the quantum circuit for the quantum adder Toffoli gate
Awarded Apr 1 at 4:15
Is a “kernel” just the quantum equivalent of classical SVMs?
Awarded Apr 1 at 3:01
Error “too many subscripts in einsum”, UnitaryGate()
Awarded Mar 31 at 8:56
Quantum SVM with large feature set
Awarded Mar 31 at 2:20
Show that the Bell states form a basis
Awarded Mar 30 at 17:08
In the job tab, no histogram appears
Awarded Mar 29 at 18:25
Incorrect rendering of a circuit by draw method
Awarded Mar 28 at 9:47
How would I apply rotations to both qubits in a 2 qubit system?
Awarded Mar 27 at 20:06
Grover's algorithm for the real problem of finding the index of an array element
Awarded Mar 27 at 6:48
Minimal output dimension of a quantum channel
Awarded Mar 27 at 4:08
What is Qiskit's Transpiler method for unitary synthesis?
Awarded Mar 26 at 7:41
Finding Eigen Values from Quantum Phase Estimation - Using qiskit
Awarded Mar 25 at 17:11
How would I theorise a quantum query algorithm in O(1)?
Awarded Mar 23 at 20:10
The complexity of LH with constant gap
Awarded Mar 23 at 19:11
Function in Qiskit to get the quantum circuit
Awarded Mar 23 at 18:31
How to use QFT operation in Q#?
Awarded Mar 22 at 2:36
Quantum Fourier Transform in the Period Finding Problem
Awarded Mar 16 at 14:47
Best way to compute $\langle a|B|a \rangle$ in Cirq, where a is a state obtained running circuit A. And B is a different Quantum Circuit
Awarded Mar 16 at 9:00
What all parameters can we take into account when comparing different quantum programming languages
Awarded Mar 15 at 9:20
Is there a way to use titles on circuit drawing?
Awarded Mar 14 at 9:05
Is it possible to express $U_1(\lambda)$ through the gates $R_x, R_y, R_z$ while maintaining the phase? In Qiskit for example
Awarded Mar 14 at 8:05
How to calculate the overlap of the orthogonal state?
Awarded Mar 14 at 2:10
How to perform a phase operator on register that contains two or more qubits？
Awarded Mar 13 at 11:06
How do I decompose the given $4\times 4$ matrix in terms of Pauli matrices? [duplicate]
Awarded Mar 12 at 14:07
Is there an identity for the partial transpose of a product of operators?
Awarded Mar 12 at 9:04
From mathematical notation to quantum circuit, in general
Awarded Mar 10 at 16:20
Why is the subscript like this in the equation $\sum_i |\psi_i\rangle \langle\psi_i| = \sum_{ijk} u_{ij} u_{ik}^{*}|\phi_j\rangle \langle\phi_k|$?
Awarded Mar 10 at 14:35
Can we use space to achieve absolute zero for a quantum computer?
Awarded Mar 10 at 8:56
If $\text{supp}(\rho_{AB})\subset \text{supp}(\sigma_{AB})$, is $\text{supp}(\rho_{A})\subset \text{supp}(\sigma_{A})$?
Awarded Mar 8 at 17:27
Quantum Amplitude Estimation vs Quantum Phase Estimation
Awarded Mar 7 at 13:17
Quantum machine learning after Ewin Tang
Awarded Mar 6 at 11:08
Should I learn a low-level QC programming language?
Awarded Mar 5 at 11:11
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