Tag: entropy

10 Proof of an Holevo information inequality 2018-05-25T17:48:26.070

8 Building Intuition for Relative Von Neumann Entropy 2018-12-19T07:08:21.060

7 Is the set of all states with negative conditional Von Neumann entropy convex? 2018-12-19T06:29:21.573

7 What are the thermodynamic limits of Shor's algorithm 2020-05-27T03:18:58.150

6 Relating min-entropy with conditional entropy 2018-10-09T21:13:55.337

6 Quantum relative entropy with respect to a pure state 2020-10-14T17:32:58.323

5 Accessible information of system vs system, apparatus and environment 2018-04-27T17:53:00.170

5 Maximally mixed states for more than 1 qubit 2018-11-01T16:33:20.187

5 Where does the Xmon simulator from Googles cirq framework its entropy from? 2019-02-02T20:58:53.027

5 Superoperator cannot increase relative entropy 2019-05-05T21:23:27.183

5 Quantum Supremacy: Some questions on cross-entropy benchmarking 2019-10-06T21:20:11.143

5 How to measure entanglement in an algorithm? 2019-10-21T09:45:57.923

5 Connection between smooth max-relative entropy and smooth max-information 2020-09-04T19:01:43.567

5 Prove that Shannon and von Neumann entropies satisfy $H(P)\ge S(\rho)$ with $P$ diagonal of $\rho$ 2020-09-05T14:36:45.233

5 Relative entropy inequality for many copies of a channel 2020-10-13T14:17:41.183

5 Prove that the conditional entropy of a classical-quantum state is non-negative 2020-12-16T23:12:23.613

4 Shannon entropy is least when Measurement basis = Mixture basis 2018-12-16T18:55:11.153

4 What do entanglement cost and distillable entanglement have to do with measuring entanglement? 2019-03-05T22:58:54.167

4 Understanding classical vs. quantum channel capacities 2019-04-02T09:00:43.407

4 Degradable channels and their quantum capacity 2019-05-09T15:39:08.343

4 What are good resources for newcomers on entropy measurements? 2020-03-09T21:41:06.977

4 Schumacher compression - comparing with Shannon compression 2020-04-24T22:27:54.187

4 Energy cost of quantum computation 2020-07-07T19:08:53.403

4 Definition of quantum min-relative entropy 2020-07-16T23:07:15.210

4 How can the Holevo bound be used to show that $n$ qubits cannot transmit more than $n$ classical bits? 2020-08-01T17:48:20.857

4 Non-lockability of quantum max-entropy 2020-09-23T16:43:39.673

4 Does the quantum Jensen-Shannon divergence appear in any quantum algorithms or texts on quantum computing? 2020-11-03T11:59:55.643

4 Calculating the entropy of a quantum state 2021-01-08T09:25:10.673

3 Semidefinite program for conditional min-entropy 2018-11-10T20:54:48.007

3 Total mutual information of a quantum system 2018-11-19T11:52:13.937

3 Quantum channel cannot increase Holevo information of an ensemble 2019-05-09T09:58:49.123

3 What is Landauer’s principle? 2019-06-12T09:48:26.763

3 How do I compute the Relative Entropy between pure and mixed states? 2019-09-27T22:00:42.467

3 Forbidden/allowed outputs of a quantum channel 2020-01-27T19:10:10.347

3 Questions on the max-relative entropy $D_{\max}(\rho||\sigma)$ 2020-03-25T19:30:31.677

3 How can one estimate the von Neumann entropy of an unknown quantum state? 2020-09-01T15:56:36.683

3 Do we know the limits of the quantum Tsallis entropy? 2020-12-16T10:56:41.947

2 Can an isometry leave entropy invariant? 2019-05-01T18:18:35.447

2 What property ensures that von Neumann entropy is conserved? 2019-05-29T12:17:39.807

2 How to prove the following bosonic entanglement expression? 2019-06-16T16:47:01.167

2 Convexity of coherent information - erroneous argument! 2020-01-23T17:42:07.787

2 Quantum state discrimination and lower bound for conditional von Neumann entropy 2020-01-26T23:52:18.620

2 Conditional version of the triangle inequality for Von Neumann entropy 2020-02-05T05:04:52.377

2 How to calculate the Von Neuman entropy on qiskit with the module quantum_info? 2020-03-06T23:08:38.113

2 Continuity bounds on $D_{\max}(\rho_{AB}\|\rho_A\otimes\rho_B)$ 2020-04-12T00:06:15.013

2 What is the Von Neumann entropy of $\rho = \sum_ip_i|i\rangle\langle i| \otimes \rho_i$? 2020-04-21T04:26:27.850

2 Increasing the von Neumann entropy despite the measurement? 2020-05-04T19:47:59.510

2 Under what situation is $\sum_{i} p_{i}S(\rho_i)$ > 0 2020-06-12T12:40:10.850

2 How is $S(\rho)=H(p_{i})+\sum_{i}p_{i}S(\rho_{i})\le \log(d)$ possible if $\rho_{i}$ are not pure states? 2020-08-23T15:43:29.120

2 Conditional Time Evolution increases entropy? 2020-10-13T10:22:55.290

2 What is the relationship between these two definitions for the max-entropy? 2020-10-24T00:00:35.917

2 von Neumann entropy in a limiting case 2020-10-24T16:29:52.203

2 Is "classical information" the same as "Shannon information"? 2020-10-28T02:50:11.087

2 Relating quantum max-relative entropy to classical maximum entropy 2020-10-28T04:07:36.207

2 Quantum analogues of information theoretic measures: are log probabilities replaced with the density matrix? 2020-10-29T00:56:26.600

2 Positive conditional quantum entropy for entangled state 2020-11-16T02:50:39.403

2 Additivity of Renyi entropy 2020-12-15T19:38:57.077

1 Computing von Neumann entropy of pure state in density matrix 2019-03-18T02:01:21.887

1 Entropy of a shared state as measured by the individual parties 2019-11-27T10:41:05.923

1 How well defined is $\log(P)$ for $P$ projection? 2020-07-17T16:27:33.103

1 Proof of quantum data processing inequality in N&C on pg 566 2020-08-10T16:27:54.910

1 Semi-definite program for conditional smooth max-entropy 2020-09-21T02:35:38.123

1 Prove that for a general tri-partite state $\rho_{ABE}$, $H(AB) = H(E)$ 2020-11-16T00:01:46.130

0 Entanglement entropy's role in quantum information 2019-12-11T01:00:57.923

0 Using entropy_mutual function in QuTiP 2020-04-30T13:25:25.060