Quantum Computing
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Craig Gidney
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120 Answers

Newest Activity Votes
23
Are there emulators for quantum computers?
Mar 12 '18 at 23:21
18
Is quantum computing mature enough for a computer scientist with no physics background?
Aug 8 '18 at 1:26
15
How does a quantum computer do basic math at the hardware level?
Apr 10 '18 at 17:54
13
Why do the IBM and Google processors both have 53 qubits?
Nov 4 at 21:44
13
Can the Bloch sphere be generalized to two qubits?
Nov 13 '18 at 23:42
12
What are physically allowed CNOTs for Rigetti's 19 qubit chip and Google's 72 qubit BristleCone chip?
Jul 19 '18 at 17:55
10
Is there a classical limit to quantum computing?
Sep 5 '18 at 15:02
9
How to implement the “Square root of Swap gate” on the IBM Q (composer)?
Jun 4 '18 at 22:42
9
Obtaining gate $e^{-i\Delta t Z}$ from elementary gates
Apr 22 '18 at 17:42
8
Approximating unitary matrices
Dec 27 '18 at 15:58
8
How to prevent future loops using a control qubit?
Oct 27 '18 at 17:41
8
Are quantum computers just a variant on Analog computers of the 50's & 60's that many have never seen nor used?
Jul 8 '18 at 17:47
8
Why are quantum gates unitary and not special unitary?
May 13 '18 at 5:23
8
What is the minimum integer value to make quantum factorization to be worthwhile?
Apr 17 '18 at 18:38
7
Why does measuring one qbit after the other in this entangled system alter the result?
2 days ago
7
Premise of the proof of the No-Cloning Theorem
Nov 15 at 22:47
7
List of qubit locations with cirq
Jul 23 '18 at 12:08
6
How to add control to gates in Cirq?
Feb 18 at 22:45
6
Is it possible to create controlled gates with an exponent in Cirq?
Nov 17 '18 at 1:34
6
General construction of $W_n$-state
Oct 5 '18 at 18:20
6
Tools for creating quantum circuit diagrams
Oct 31 '18 at 17:08
6
Do we really know how a universal quantum computer can be used to revolutionize the design of new drugs or materials?
Sep 3 '18 at 13:59
6
Cloning classical data encoded into qubits
Aug 28 '18 at 12:59
6
How to think about the Z gate in a Bloch sphere?
Jun 2 '18 at 1:03
6
Is entanglement transitive?
May 22 '18 at 18:07
5
Can superdense coding be made more efficient?
Nov 17 at 22:14
5
Why should we use inverse QFT instead of QFT in Shor's algorithm?
Jun 9 at 19:59
5
What is the HOG test and how would it help proving quantum supremacy?
May 23 at 21:41
5
Expected repetitions of the quantum part of Shor's algorithm
Dec 13 '18 at 1:18
5
How to set a starting state in cirq?
Feb 15 at 17:42
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