Tag: grovers-algorithm

29 Is there a layman's explanation for why Grover's algorithm works? 2018-03-28T12:22:51.887

26 Has there been any truly ground breaking advance in quantum algorithms since Grover and Shor? 2018-09-21T04:47:36.667

20 Can adiabatic quantum computing be faster than Grover's algorithm? 2018-06-15T18:02:17.510

19 How does the Grover diffusion operator work and why is it optimal? 2018-04-05T17:36:59.923

19 Grover's algorithm: where is the list? 2018-05-20T11:41:37.023

16 What applications does Grover's Search Algorithm have? 2018-05-04T10:49:03.160

15 Grover's algorithm: a real life example? 2018-06-17T17:55:12.897

12 Grover's Algorithm and its relation to complexity classes? 2018-05-27T15:35:53.370

12 How is the Grover-Algorithm applied to a database? 2019-03-14T00:48:08.470

10 How is Grover's algorithm used to estimate the mean and median of a set of numbers? 2018-05-01T12:34:54.377

10 Why is an oracle qubit necessary in Grover's algorithm? 2018-05-25T14:20:59.853

10 Grover's algorithm: what to input to Oracle? 2018-05-25T20:59:54.013

10 Implementation of the oracle of Grover's algorithm on IBM Q using three qubits 2018-05-31T22:35:40.077

10 Can we speed up the Grover's Algorithm by running parallel processes? 2018-10-24T20:06:08.157

9 Quantum attack on hash functions 2018-10-25T14:48:49.033

9 Current limits on Grover search space 2019-02-09T09:06:28.097

9 Grover's algorithm in a nutshell 2019-08-16T16:06:52.107

8 Does the oracle in Grover's algorithm need to contain information about the entirety of the database? 2018-03-28T21:19:07.080

8 In Grover's Algorithm, why does the optimal number of iterations involve a floor? 2018-04-27T09:58:07.370

8 Grover algorithm for a database search: where is the quantum advantage? 2019-06-04T14:40:25.980

7 In amplitude amplification, how are the amplitudes of qubits changed? 2018-07-09T22:03:05.570

7 How significant are the variants of Grover's Algorithm? 2018-10-07T20:32:28.527

7 What is the complexity of the quantum phase estimation in Grover's algorithm? 2019-02-06T23:34:23.273

7 Preparing a quantum state from a classical probability distribution 2020-05-20T21:25:42.280

6 Correspondence between the Topological model and Quantum Circuit model 2018-12-30T18:56:38.720

6 Why is the application of an oracle function not a measurement? 2019-06-02T08:09:09.080

6 Implementation of Grover's Algorithm (minimum spanning tree) 2019-06-06T15:43:00.803

6 Grover's diffusion on subset of input space 2019-06-08T20:24:51.513

6 Changing qubits coefficients to trigonometric functions in Grover Algorithm 2020-02-24T18:57:04.223

6 XOR gate for n control qubits in qiskit 2020-06-15T15:51:05.200

5 How to obtain arbitrary distribution in quantum database 2018-05-30T10:03:51.980

5 How is Grover's operator represented as a rotation matrix? 2019-01-28T15:26:20.137

5 How to create the oracle matrix in Grover's algorithm? 2019-01-31T18:35:59.703

5 Why is Grover's algorithm not converging monotonically? (Python implementation) 2019-02-03T22:33:15.963

5 Durr and Hoyer's: A Quantum Algorithm for Finding the Minimum 2019-03-14T15:00:53.230

5 Proof of the optimality of Grover's algorithm 2019-03-27T17:02:42.607

5 How does an oracle function in Grover's algorithm actually work? 2019-03-27T22:02:17.487

5 Prove that the operator $H U_{0^\perp}H$ can be expressed as $2|\psi\rangle\langle\psi|-I$ 2019-04-13T13:52:51.577

5 Grover's algorithm – DES circuit as oracle? 2019-04-13T16:17:25.000

5 Are there many practical problems for which Grover's algorithm beats the best heuristic classical algorithm? 2019-08-09T02:28:07.680

5 Exact functions of a single-iteration Grover Search Algorithm's operators 2019-10-24T22:48:05.937

5 Significance of the term "diffusion" in Grover's diffusion operator 2019-10-26T11:41:24.463

5 Why, in Grover's algorithm, $H^{\otimes n}(2|0\rangle\! \langle0| - \mathcal{I})H^{\otimes n}=2|\psi\rangle \!\langle\psi| - \mathcal{I}$? 2019-12-11T16:51:04.897

5 Nielsen and Chuang, Exercise 6.5: How to simulate oracle for n+1 qubits using one oracle gate for n qubits and one extra qubit? 2019-12-25T05:10:07.270

5 Can anyone provide me with an example of the for Grover's algorithm on one qubit? 2020-08-13T03:34:53.440

4 Example of Grover's Algorithm applied to a decision problem? 2018-05-28T18:47:43.467

4 How many qubits does it take to break a 10 characters password? 2018-10-02T06:15:37.470

4 Grover's algorithm with W-state 2018-12-14T21:24:01.637

4 Is the $|-\rangle$ state the only one that can do the trick for Grover's algorithm? 2019-02-06T23:56:22.917

4 Adapting search algorithm to search the minimum in a database in $O(\sqrt{N}\log(N))$ queries 2019-03-14T09:38:26.090

4 Grover's algorithm: number of searches required to find a key 2019-04-01T09:19:58.050

4 Grover search with single query to $f(x)$ and multiple queries to $f(x) = a$ 2019-05-15T20:41:56.103

4 Success probability in Grover's algorithm where there are multiple targets 2019-05-26T10:50:20.633

4 Grover search for basis states with complex coefficents and multiple marked states 2019-06-12T08:44:40.383

4 Does an oracle use only the eigenstates of the quantum register? 2019-06-19T07:34:04.277

4 Second reflection in the Grover's algorithm 2019-07-08T10:51:07.620

4 Logical Explanation behind second reflection in Grover's algorithm 2020-01-13T18:40:46.273

4 Quantum circuit CCX optimization for Grover 2020-04-04T14:39:02.833

4 How can you decompose Grover's diffusion operator into gates? 2020-08-14T09:41:32.357

4 What to do when the amount of solutions is not known before applying Grovers Algorithm? 2020-08-14T12:40:50.800

4 Qiskit: How can I modify Grover's algorithm to search for a state that doesn't belong to a basis set? 2020-11-20T18:35:36.683

4 How to understand intuitively the Grover diffusion operator? 2020-12-02T18:47:28.850

4 Are applications with only polynomial speedup worth chasing after? (since error correction adds a heavy overhead) 2021-01-02T22:31:48.713

4 Is there an issue preventing people from scaling Grover's algorithm to larger numbers of qubits? 2021-02-23T09:09:31.433

3 Why does Grover's search invert about the mean? 2018-10-14T22:18:34.500

3 Practical example of Grover's algorithm (in Q#) 2018-11-01T09:07:04.070

3 Speedup Prange ISD using Grover 2018-12-09T22:29:45.787

3 Is there any (really) quantum procedure that's an algorithm and not a Las Vegas algorithm? 2018-12-19T20:20:44.347

3 Proof that Grover's operator can be written as $D_N=-H_n R_N H_n$ 2019-03-04T14:15:20.940

3 Finding the second smallest number. Is it achievable in QC? 2019-03-07T12:24:45.073

3 Grover's algorithm and Battleship solution 2019-03-09T08:46:05.703

3 How do you implement the gates for Grover's algorithm for more than 4 elements? 2019-03-14T07:59:30.420

3 N&C quantum circuit for Grover's algorithm 2019-03-26T08:56:59.427

3 In what sense do repeated applications of Grover's operator rotate the state closer to the target? 2019-03-27T19:08:51.400

3 Reversible crypto systems for use in the Grover's algorithm 2019-04-17T09:13:49.057

3 Counting in Q#: number of solutions 2019-04-24T13:33:35.577

3 Grover's algorithm for game tree 2019-08-18T18:29:51.247

3 In Grover's Algorithm, does the exact solution need to be given to the oracle? 2019-09-01T02:55:45.017

3 Why can we forget about the ancilla bit in Grover's algorithm? 2019-10-13T02:41:04.137

3 Probability of observing search string $\omega$ after $r$ iterations 2019-10-26T11:30:34.707

3 What is the difference between Grover's and Amplitude Amplification? 2019-11-01T11:09:07.550

3 Grover's search for solving TSP 2019-12-01T13:35:13.930

3 How many iterations does Grover’s search need to find one out of $M$ marked items? 2019-12-04T17:53:47.160

3 Is it possible to mine bitcoin by implementing Grover's algorithm on a quantum computer 2020-02-09T14:36:30.403

3 Any other quantum algorithms than Jozsa-Deutsch decision algorithm, Grover search algorithm, Shor factorization algorithm? 2020-02-20T05:36:53.457

3 Difficulty in implementing Grover's Algorithm with large number of qubits 2020-02-20T23:09:05.087

3 How to find a marked item out of $K < N$ marked items when K is unknown? 2020-05-04T17:40:13.463

3 What exactly is the reason why the Abrams - Lloyd algorithm does not allow implementation using unitary gates and ancillary qubits? 2020-05-23T06:02:18.803

3 Grover's Algorithm on a Database with more than 50% matching entries 2020-07-05T12:40:51.467

3 Is there an explanation for why, to search through an unstructured database, the average number of checks is $\frac{N}{2}$ in classical computation? 2020-11-13T11:41:10.720

3 How to write the classical algorithm for lights out problem? 2020-11-28T06:36:36.933

3 Weird Grover's Algorithm Behavior 2021-01-03T03:32:20.223

3 Is it possible to nest quantum Markov chain Monte Carlo, mean and minimum algorithms? 2021-01-04T16:37:41.733

2 In Grover's algorithm, why is the unitary corresponding to the phase shift $2\lvert0\rangle\langle0\rvert-I$? 2019-01-23T18:29:43.880

2 Grover algorithm for more than one element 2019-01-30T17:32:47.303

2 Consequences of Grover's algorithm 2019-03-29T16:06:52.477

2 Grover's algorithm returns skewed probability distribution 2019-04-23T02:10:49.750

2 Grover diffusion operator different gates 2019-05-27T17:08:34.440

2 Angular Error associated with Quantum Search Algorithm 2019-06-28T11:44:34.347