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18

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modified 3 mins ago glS♦ 15.2k

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asked 9 hours ago unknown 564

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21

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modified 14 hours ago epelaaez 2,354

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285

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modified yesterday glS♦ 15.2k

0

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answered yesterday Craig Gidney 15.8k

3

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567

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answered 2 days ago glS♦ 15.2k

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55

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modified yesterday glS♦ 15.2k

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1

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modified 19 hours ago Adam Zalcman 9,265

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2

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58

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modified 16 hours ago unknown 564

2

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modified yesterday glS♦ 15.2k

0

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34

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In quantum error correction using repetition codes, how would I decode an even # of repetitions with errors on half the qubits using majority voting? [closed]

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modified yesterday epelaaez 2,354

4

votes

1

answer

72

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What is the structure of coefficients of $2^N\times 2^N$ unitary matrices decomposed in terms of the Pauli basis?

mathematics unitarity pauli-gates linear-algebra

modified yesterday Danylo Y 4,610

2

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0

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63

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modified yesterday glS♦ 15.2k

1

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1

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37

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In Schumacher’s noiseless channel coding theorem, how do we get the exponents in $|0\rangle ^{\otimes n(1−p)/2}|1\rangle ^{\otimes n(1−p)/2}$?

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modified yesterday Adam Zalcman 9,265

1

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0

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15

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$E(U_j,V_j)\leq\Delta/(2m)$ if probabilities of outcomes obtained from the approximate circuit is within a tolerance $Δ>0$

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asked yesterday Sooraj S 113

0

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0

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18

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What exactly happens in a quantum annealing process?

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asked yesterday Felix 1

0

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1

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23

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Knill Laflamme conditon

textbook-and-exercises error-correction optical-quantum-computing

answered yesterday Quantum Mechanic 1,509

1

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0

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20

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Why we need real-time feedback of Surface Code Decoding results?

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modified 2 days ago narip 1,529

1

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1

answer

36

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Compute expectation value of an operator in openfermion

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answered 17 hours ago Solarflare0 309

6

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3

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647

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Quantum advantage with only Clifford gates (Gottesman Knill theorem)

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answered Oct 11 at 13:53 Aryan Blaauw 1

1

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0

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12

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How to take 3-point or more correlators into edge probability computation in surface code decoding?

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modified yesterday narip 1,529

1

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0

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25

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How can I get fidelity of a gate from randomized benchmarking?

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asked 2 days ago Curious 37

6

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0

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58

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Review paper on depth, qubits and $T$ gates number on Clifford+T decomposition for various "typical" algorithms

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modified 2 days ago StarBucK 1,021

-1

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0

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20

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Notation to Replace the Input to a Function [closed]

nielsen-and-chuang notation

asked 2 days ago Alexia. 563

0

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0

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26

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How to write a code to made envelope function equal to $\pi$ to result in an X gate?

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modified 2 days ago Martin Vesely 9,863

5

votes

1

answer

249

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What is the motivation for using dual lattice in the surface code?

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modified Oct 11 at 5:40 Adam Zalcman 9,265

0

votes

0

answers

21

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How do you access stored Ramsey experiment frequency?

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modified Oct 13 at 7:42 epelaaez 2,354

4

votes

2

answers

54

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Can error correction for a classical algorithm with bit flips be easier than for a general quantum circuit?

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answered Oct 11 at 17:14 user440774 31

1

vote

1

answer

58

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How to compute the measurement probabilities of $|\phi\rangle=\sum_k c_k |k\rangle$ in a rotated basis $V|k\rangle$?

measurement textbook-and-exercises notation linear-algebra

modified Oct 13 at 1:27 user1271772 10.8k

-2

votes

1

answer

45

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Decomposition of U1 gate $U_1(\lambda)$ , Phase Shift gate $\phi(\delta) $, and Swap gate [closed]

quantum-gate textbook-and-exercises gate-synthesis

modified Oct 12 at 11:31 epelaaez 2,354

1

vote

0

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32

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How to understand picking a random subcube in the Aaronson/Ambainis spatial search algorithm?

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modified 2 days ago Mark S 5,540

5

votes

2

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305

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qiskit quantum-state complexity-theory

answered Oct 8 at 12:15 epelaaez 2,354

3

votes

1

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37

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Using Classical Shadow to predict quantum state's fidelity has nothing to do with the dimension of the density matrix?

tomography shadow-tomography

modified Oct 11 at 8:09 Markus Heinrich 1,743

0

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0

answers

28

views

How to determining whether certain dynamical processes are elementary? [closed]

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modified Oct 12 at 9:01 glS♦ 15.2k

0

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1

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59

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modified yesterday Condo 922

1

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1

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41

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modified Oct 11 at 8:52 glS♦ 15.2k

2

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2

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36

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modified Oct 12 at 9:24 Nikita Nemkov 726

2

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2

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47

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answered Oct 12 at 18:01 Catalina 21

0

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1

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48

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1

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3

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387

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Is there any simple mathematical proof that measurement destroys entanglement?

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modified Oct 7 at 23:06 Adam Zalcman 9,265

2

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1

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60

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How to import a generic stabilizer code in stim

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modified Oct 10 at 23:36 glS♦ 15.2k

2

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3

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78

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Why can no pair of single qubits look like $\frac{1}{\sqrt2}(|00\rangle+|11\rangle$)?

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answered Oct 7 at 18:20 Martin Vesely 9,863

0

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1

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18

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Q#/VS: No namespace with the name "Microsoft.Quantum.Canon" exists

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answered Oct 11 at 20:06 Daniel Widdis 101

4

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0

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72

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Can changing reference frames generate entanglement in identical particles?

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modified Oct 10 at 8:57 epelaaez 2,354

1

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1

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23

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how to know the appropriate time to know the SWAP gate operation in dipole interaction

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modified Oct 11 at 7:30 Mauricio 939

2

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1

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56

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How do I pick a random Clifford operation in Stim?

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modified Oct 12 at 9:03 glS♦ 15.2k

3

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57

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+150

Conditional lower bound on approximate stabilizer rank of magic states

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modified Oct 11 at 4:47 BlackHat18 773

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Working with higher energy states in Qiskit Experiments

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modified Oct 11 at 7:31 glS♦ 15.2k

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