Tag: hamiltonian-simulation

16 What are examples of Hamiltonian simulation problems that are BQP-complete? 2018-05-17T03:52:58.673

15 Obtaining gate $e^{-i\Delta t Z}$ from elementary gates 2018-04-22T17:24:34.220

14 Circuit construction for Hamiltonian simulation 2019-02-27T16:34:09.700

13 How are quantum gates realised, in terms of the dynamic? 2018-03-22T11:54:59.120

13 Hamiltonian simulation with complex coefficients 2018-07-24T17:42:17.647

12 Simulate hamiltonian evolution 2019-02-14T10:01:57.727

11 Advantage of simulating sparse Hamiltonians 2018-07-27T08:51:36.893

10 How to implement a matrix exponential in a quantum circuit? 2018-06-27T12:32:54.373

10 Is there a Hamiltonian simulation technique implemented somewhere? 2018-08-14T12:37:15.387

9 Quantum algorithm for linear systems of equations (HHL09): Step 2 - What is $|\Psi_0\rangle$? 2018-06-19T11:03:29.097

9 Ground state energy estimation - VQE vs. Ising vs. Trotter–Suzuki 2019-09-12T06:53:29.517

9 Where does precisely the dificulty in exponentiating a Hamiltonian $H$ in the quantum simulation problem lay? 2019-12-21T18:06:02.510

8 Practical implementation of Hamiltonian Evolution 2018-07-20T12:05:30.820

7 Simulating a 3-local Hamiltonian Term 2019-06-14T04:50:34.120

7 Number of Qubits Required for Simulation of Caffeine and Penicillin Molecules 2019-08-10T19:16:52.440

7 Quantum circuit to implement matrix exponential 2020-03-28T10:25:45.057

7 Impact of ordering Hamiltonian terms for Trotterization 2020-09-01T16:15:26.993

6 Example of Hamiltonian Simulation solving interesting problem? 2018-08-29T12:16:49.933

6 Problem with the mathematical formulation of "qubitization" 2018-12-11T12:58:02.273

5 How to find parameters for circuit decomposition of Hamiltonian simulation of any matrix $A$? 2018-11-25T04:24:13.120

5 Clarification of a procedure to compute the product of the exponential of two matrices 2019-06-06T02:50:20.413

5 Representation of rotation operators $e^{-i\theta(I-Z_1\otimes Z_2 \otimes Z_3)}$ about arbitrary axis for $3$ qubits 2020-06-20T23:14:21.420

4 How are two different registers being used as "control"? 2018-06-27T22:13:57.977

4 Introductory resources for learning about quantum Hamiltonians 2018-10-05T20:56:29.820

4 Numerical approximation to eigenstates and their differentials 2018-12-29T16:33:33.893

4 How to implement NM Algorithm for Variational Quantum Eigensolver? 2019-06-23T02:24:04.223

4 Proof that most Hamiltonian evolutions are not efficiently approximable by quantum circuits 2019-12-22T09:48:19.233

4 What is the correct sign in the unitary evolution operator of a beam splitter? 2020-03-03T15:10:32.627

4 Resource recommendation on quantum simulations 2020-05-23T15:29:12.487

4 Why does one need a non-commuting Hamiltonian for an algorithm to exhibit "quantumness" 2020-06-08T16:40:05.637

4 Proof that any unitary can be written as $U=e^{-iH}$ with $H$ Hamiltonian with bounded norm 2020-09-28T04:09:27.170

4 Why QAOA with $p \rightarrow \infty $ gives the optimal solution? 2021-01-03T05:22:03.123

4 Trotter error for bosons in various encodings 2021-02-19T07:38:30.953

3 How to pick number of simulation qubits for finding eigenvalue of fermionic Hamiltonian? 2019-05-08T16:07:14.480

3 Implement a Hamiltonian in O(n) - exercise question 2019-05-28T08:16:23.397

3 Hamiltonian simulation in quantum computation 2019-06-22T12:49:54.607

3 Quantum Optimization via Quantum Label Classification in Quantum Circuits 2019-06-27T04:43:52.423

3 Which representation describes the composite Hilbert space? 2019-07-19T17:59:55.740

3 Estimating errors in Hamiltonian Simulation paper 2019-07-23T08:23:05.947

3 How is the precision of a quantum simulation algorithm actually proved? 2019-11-15T13:14:18.673

3 What is "Lindblad Superoperator" in Stochastic Master Equation 2019-11-27T17:15:09.190

3 XX, YY, ZZ circuit representations? 2020-02-22T04:07:54.527

3 Ansatz state for finding the lowest eigenvalue of a $2^n\times 2^n$ real matrix using VQE 2020-04-10T02:43:37.417

3 Problem with building quantum circuit for Hamiltonian operation 2020-05-05T05:49:01.113

3 Creating Hamiltonian Simulation Operator in Q# 2020-05-18T15:58:28.803

3 What are the biggest obstacles currently preventing us from solving real world problems defined in terms of quantum simulation? 2020-05-19T11:38:31.750

3 What is the usefulness of the Suzuki-Trotter formula? 2020-05-24T19:50:15.570

3 Product of block-encoded matrices 2020-06-03T15:15:55.883

3 How close is the history state to the ground state in the Kitaev clock construction? 2020-10-30T18:59:59.743

3 How does adding an identity to an Hamiltonian affect the corresponding time-evolution in the Bloch sphere? 2020-11-03T05:56:48.520

3 How can I simulate Hamiltonians composed of Pauli matrices? 2020-11-06T03:55:49.567

3 Simulate Hamiltonians with Pauli operations (controlled time evolution) 2020-11-11T23:44:54.610

3 Definitions of $D_y$ gate in Hamiltonian simulation: are they the same? 2020-11-16T04:24:55.063

3 Sign problem and stoquastic Hamiltonians 2020-12-04T08:19:26.777

3 XY Hamiltonian in a 1D Heisenberg Chain 2020-12-18T18:17:26.110

3 Applications of Quantum Computing to Economics 2021-01-22T06:39:19.570

3 Is $\gamma \in [0,2 \pi]$ or $\gamma \in [0,\pi]$ in $CU1(2\gamma)_{(i,j)} $? 2021-01-26T18:54:28.677

3 Is there a systematic way how to generate the Hamiltonian from a given circuit? 2021-02-15T03:46:19.450

3 From QUBO matrix to Ising model in Qiskit 2021-02-20T16:16:53.787

3 What does the identity operator represent when computing $\langle\varphi|I\otimes Z|\varphi\rangle$? 2021-02-22T15:53:12.030

2 How do I construct a Density Matrix corresponding to a Hamiltonian? 2018-09-30T11:19:03.090

2 Is there a way to express the general 4X4 Hamiltonian in some block diagonal form of 2X2 matrices that I can solve, knowing the exact solution of 2X2? 2018-10-22T13:12:00.393

2 GridQubit in Cirq vs LineQubit 2019-06-24T05:51:24.363

2 Nielsen and Chuang, Exercise 6.12: How to simulate the specific Hamiltonian in the search algorithm by the Oracle gates? 2019-12-18T15:06:26.033

2 Openfermion to qiskit 2020-01-21T10:45:45.130

2 Modifying Qiskit Hamiltonian 2020-03-03T22:51:52.370

2 Problem with commutation of $e^{-iH_1t}$ and $e^{-iH_2t}$, where $H_1$ commutes with $H_2$ 2020-04-03T07:20:37.453

2 Two commuting Hamiltonians 2020-04-13T11:28:04.190

2 What Are The Most Promising Real-World Applications For Quantum Machine Learning 2020-04-13T13:54:43.853

2 How to convert a qubit hamiltonian to QUBO and vice versa? 2020-04-18T07:02:57.137

2 How to convert QUBO problem to Ising Hamiltonian? 2020-04-23T14:09:57.277

2 Question Regarding Simulating Hamiltonian With Quantum Circuit 2020-04-26T05:15:34.430

2 Example of Hamiltonian decomposition into Pauli matrices 2020-05-07T18:54:14.363

2 Generic matrix exponential in Q# 2020-05-08T10:27:13.817

2 Simulate a random quantum state time evolution in Qiskit Aqua 2020-09-23T21:10:13.127

2 How to realize Su-Schrieffer-Heeger model in Qiskit 2020-10-01T23:41:12.067

2 Why VQE gives an incorrect ground state energy for a chain of 4 hydrogen atoms? 2020-10-06T17:58:47.210

2 How do I efficiently implement a POVM using a fixed universal gate set and the ability to measure in the standard basis? 2020-10-11T06:24:56.007

2 How to solve QUBO problems in Q#? 2020-10-12T11:34:24.273

2 How precise are BQPSPACE measurements? 2020-10-14T10:59:16.127

2 How to implement the Mixer of Quantum Alternating Operator Ansatz for Max-Independent-Set 2020-10-25T19:13:32.030

2 How to get a molecular Hamiltonians in OpenFermion 2020-11-05T13:45:38.967

2 Reducing cost of Phase Estimation for Trotterization 2020-11-09T16:30:50.547

2 Gate cancellations in Hamiltonian simulation 2020-11-20T04:30:48.150

2 How can I convert exponentials of pauli matrices to circuits of this form in Qiskit? 2021-02-19T04:03:46.283

1 Why is this Hamiltonian matrix diagonal? 2018-09-28T14:02:34.607

1 Ansatz Techniques to Multi-Body Physics Problems 2019-07-07T04:42:14.560

1 Encoding Binary Data into Quantum Basis 2019-07-07T21:08:31.757

1 Exponentiating Hermitian Matrix for use in QPE/HHL 2019-11-25T23:55:06.240

1 Compiling the Pauli-Z operator to the Rz operator for Hamiltonian simulation 2019-12-21T20:19:51.527

1 Strange Behaviour of MeSolve, McSolve 2020-01-26T23:52:28.403

1 Circuit of a very trivial thing 2020-02-22T20:24:22.820

1 Primer for Quantum Circuits and Optimization 2020-02-25T16:30:02.763

1 Constructing a time evolution operator $e^{it H}$ for $H^2=I$ 2020-03-01T21:54:05.660

1 VQE Cirq example 2020-03-13T02:31:07.697

1 Questions about the Hamiltonian of a decay 2020-03-24T18:54:39.860

1 How to build a circuit for simulation of a simple Hamiltonian? 2020-05-13T10:23:12.693

1 Is there a tool to get the quantum circuit corresponding to a sparse matrix? 2020-07-15T06:40:04.323

1 Changing the Basis 2020-08-25T20:35:36.073