Revival - Badge - Quantum Computing Stack Exchange

Revival

Answer more than 30 days after a question was asked as first answer scoring 2 or more. This badge can be awarded multiple times.

Awarded 243 times.

Given a POVM, what's the channel that optimally preserves coherence in the post-measurement outcomes?

Awarded 19 hours ago

glS♦

23.4k5 gold badges30 silver badges101 bronze badges

Distance of concatenated codes: a counter example?

Awarded yesterday

FDGod

1,3762 gold badges3 silver badges27 bronze badges

What role does Landauer's principle play in quantum reversibility?

Awarded Nov 27 at 3:45

John Gardiner

663 bronze badges

When is the square root of a Clifford gate a Clifford gate?

Awarded Nov 23 at 14:26

Adam Zalcman

20.8k2 gold badges27 silver badges73 bronze badges

Quantum computation of classical Fisher information

Awarded Nov 17 at 3:26

David Wierichs

2211 silver badge4 bronze badges

Can we write CNOT gate in terms of Quaternion?

Awarded Nov 5 at 0:01

FDGod

1,3762 gold badges3 silver badges27 bronze badges

Smaller quasi-cyclic LDPC code

Awarded Nov 2 at 16:31

Leonid Pryadko

212 bronze badges

Quantum Algorithm for Linear interpolation

Awarded Oct 30 at 15:56

Tristan Nemoz

5,3541 gold badge6 silver badges29 bronze badges

Quantum algorithm for QR and SVD matrix decomposition?

Awarded Oct 27 at 21:12

Gokul Alex

9077 silver badges15 bronze badges

How comes the definition of Pauli transfer matrix?

Awarded Oct 9 at 14:10

cyrie wang

213 bronze badges

Thermodynamic Speed Limit to Quantum Computing

Awarded Sep 28 at 9:34

Mark Spinelli

10.7k2 gold badges17 silver badges61 bronze badges

Why is Grover's Algorithm considered to be a Quantum Walk?

Awarded Sep 24 at 10:34

Pedro

212 bronze badges

translating between measurement based and circuit based quantum computation

Awarded Sep 22 at 13:15

Ron Cohen

1,1843 silver badges17 bronze badges

Visualizing Y-gate operation to achieve quantum state

Awarded Sep 14 at 5:16

Egretta.Thula

9,1321 gold badge10 silver badges28 bronze badges

What's a Qubit on D-Wave 2000Q?

Awarded Sep 12 at 16:40

Rimgaudas Laucius

314 bronze badges

Is the Eastin-Knill Theorem incorrect?

Awarded Sep 12 at 14:16

Ian Gershon Teixeira

2,9202 silver badges15 bronze badges

How is the size of the circuit derived, in proving the threshold theorem?

Awarded Sep 2 at 20:05

banercat

7553 silver badges18 bronze badges

Efficient implementation of the Clifford group for $n$ qubits

Awarded Sep 2 at 9:03

Tuomas Laakkonen

1586 bronze badges

Weakly transversal gates for the $ [[5,1,3]] $ code

Awarded Aug 18 at 16:11

DaftWullie

55.7k2 gold badges43 silver badges121 bronze badges

Quantum annealing - studies showing empirical evidence for better performance in comparison with classical computers

Awarded Aug 3 at 14:21

raeth

513 bronze badges

Measuring Ising anyons: What is a fusion measurement?

Awarded Aug 2 at 10:05

Sachin Valera

1214 bronze badges

Correspondence between the Topological model and Quantum Circuit model

Awarded Jul 29 at 13:35

Milo Moses

1757 bronze badges

Can separable states have quantum mutual information larger than one?

Awarded Jul 10 at 16:06

Rammus

5,3551 gold badge5 silver badges22 bronze badges

What is the "physical" Hilbert space for non-local Hamiltonians?

Awarded Jul 8 at 7:55

Norbert Schuch

5,68212 silver badges24 bronze badges

Transpile mct to cx without QuantumCircuit

Awarded Jul 7 at 17:09

luciano

5,5831 gold badge11 silver badges33 bronze badges

Threshold estimate for 7-qubit code with flag-qubit syndrome extraction

Awarded Jun 30 at 16:25

Peter-Jan

1,0146 silver badges20 bronze badges

Why adding H-gate is referred as changing the basis of measurement?

Awarded Jun 12 at 1:16

Bento Montenegro

665 bronze badges

Are there other ways to understand/define code distance in stabilizer QEC codes?

Awarded Jun 11 at 21:15

Peter-Jan

1,0146 silver badges20 bronze badges

Are there practical uses for boson sampling?

Awarded Apr 13 at 23:34

Alexey Uvarov

6845 silver badges14 bronze badges

Calculate the period (like in Shor's algorithm) from the factors?

Awarded Mar 23 at 8:57

Sam Jaques

1,9946 silver badges15 bronze badges

Ensemble state identification from ensemble state distinction

Awarded Mar 17 at 23:01

Qaunt_mickey

362 bronze badges

Implementing Quantum Walks at IBM

Awarded Mar 15 at 12:51

Thomas Mullor

4902 silver badges10 bronze badges

How does a map being "only" positive reflect on its Choi representation?

Awarded Mar 15 at 11:18

Mateus Araújo

2,3724 silver badges15 bronze badges

Status of Google's quantum supremacy claim 2022

Awarded Mar 12 at 17:05

squiggles

6233 silver badges8 bronze badges

Is it advantageous for a state to have higher Bell CHSH violation?

Awarded Mar 7 at 20:35

Condo

1,8935 silver badges30 bronze badges

Is there a tutorial for error mitigation in qiskit that does not use the deprecated ignis?

Awarded Mar 6 at 9:48

Egretta.Thula

9,1321 gold badge10 silver badges28 bronze badges

Shortest depth on Clifford+T to decompose a Toffoli

Awarded Mar 3 at 13:25

Ocelot

835 bronze badges

Does applying a random Pauli matrix to a density matrix result in the identity?

Awarded Feb 28 at 5:19

glS♦

23.4k5 gold badges30 silver badges101 bronze badges

Duration of single qubit gate in IBM

Awarded Feb 27 at 16:26

taper

2031 silver badge6 bronze badges

Inverses and the Clifford Hierarchy

Awarded Feb 18 at 4:32

Adam Zalcman

20.8k2 gold badges27 silver badges73 bronze badges

Resource recommendation on quantum simulations

Awarded Feb 6 at 11:25

C. Kang

1,6847 silver badges22 bronze badges

Why is dual-rail encoding called an error-detecting code for amplitude damping?

Awarded Feb 5 at 13:52

Riccardo Del Gratta

213 bronze badges

Why should we wait an additional d-1 surface code cycles in one-cell logical qubit move process of surface code?

Awarded Jan 28 at 1:47

Craig Gidney

33.3k1 gold badge27 silver badges91 bronze badges

How to derive the quantum Fisher information from the relative entropy?

Awarded Jan 18 at 2:32

Quantum Mechanic

3,6743 silver badges24 bronze badges

Hadamard Overlap Test

Awarded Jan 5 at 17:05

bm442

9521 gold badge2 silver badges12 bronze badges

Reference that explains how to read 3d topological diagrams for surface code computations

Awarded Jan 2 at 8:52

Craig Gidney

33.3k1 gold badge27 silver badges91 bronze badges

Complexity of a distribution of measurement of output of quantum circuit

Awarded Jan 2 at 3:05

Doriano Brogioli

4632 silver badges9 bronze badges

The Clifford hierarchy and $ e^{2 \pi i/2^k} $

Awarded Dec 13, 2022 at 12:10

Ian Gershon Teixeira

2,9202 silver badges15 bronze badges

Why does the bit flip channel produce a uniform contraction of $1-2p$?

Awarded Dec 10, 2022 at 2:53

Sooraj S

7913 silver badges14 bronze badges

Jupyter Notebook not rendering latex code

Awarded Nov 17, 2022 at 20:04

ryanhill1

2,4331 gold badge8 silver badges34 bronze badges

Does HHL implementation require a priori eigendecomposition?

Awarded Nov 15, 2022 at 13:58

Enrico

4732 silver badges12 bronze badges

Is there a non-Clifford gate preserving both $X$ and $Z$ errors?

Awarded Nov 14, 2022 at 17:06

Adam Zalcman

20.8k2 gold badges27 silver badges73 bronze badges

Raman scattering goes in all directions, so why doesn't it decohere trapped ions?

Awarded Nov 7, 2022 at 10:27

Dr. T. Q. Bit

5083 silver badges12 bronze badges

Categories and types of quantum inspired algorithms

Awarded Oct 27, 2022 at 4:05

MonteNero

2,3693 silver badges21 bronze badges

How to find a circuit for a unitary operator $e^{-i s |v \rangle \langle v| t }$?

Awarded Oct 14, 2022 at 15:15

DaftWullie

55.7k2 gold badges43 silver badges121 bronze badges

Does qiskit_ionq have the possibility of simulating quantum circuits with noise?

Awarded Oct 6, 2022 at 13:33

jjgoings

2211 silver badge5 bronze badges

How is the surface of a Bloch sphere a Hilbert space?

Awarded Sep 27, 2022 at 7:45

glS♦

23.4k5 gold badges30 silver badges101 bronze badges

How to get IonQ Task's Native Instructions/Decomposition (Amazon Braket)

Awarded Sep 17, 2022 at 23:05

Ken Robbins

4642 silver badges8 bronze badges

Reducing the depth of quantum circuits with ancilla qubits

Awarded Sep 8, 2022 at 7:40

Ernesto Galvão

2851 silver badge6 bronze badges

Quantum computing in finance - list of articles

Awarded Aug 9, 2022 at 12:51

gopalm-ai

764 bronze badges

2 3 4 5 Next