WavePacket (C++/Python) / Tickets / #70 Add a Lindblad demo

Ulf Lorenz - 2016-10-27

Milestone: 0.1.2 --> Backlog
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Ulf Lorenz - 2017-01-02

Milestone: Backlog --> 0.1.3
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Description has changed:

Diff:

--- old
+++ new
@@ -9,3 +9,4 @@
 * relaxation of density operators to thermal equilibrium (a la acceptance test "Thermal") to demonstrate the flexibility that we have.
 * Redfield dissipation; should the Redfield builder be dropped along the way in favor of such a demo?
 * Lindblad dissipation
+* absorbing boundary conditions; using it in the Hamiltonian or applying them explicitly.

Ulf Lorenz - 2017-03-15

Milestone: 0.1.3 --> Backlog
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Description has changed:

Diff:

--- old
+++ new
@@ -1,3 +1,6 @@
+Note: Break up this task. Many of the issues come with major code changes (Redfield example, absorbing boundary conditions). Also, this task is too vague and too big.
+
+
 As a third step in the comprehensive documentation, there should be extensive demo cases with documentation on how to use it for similar but different problems attached to them.

 Needs some discussion with Burkhard about the preferred format and how to integrate this into the Matlab demo cases.

Description has changed:

Diff:

--- old
+++ new
@@ -1,15 +1,5 @@
-Note: Break up this task. Many of the issues come with major code changes (Redfield example, absorbing boundary conditions). Also, this task is too vague and too big.
+Add new showcase demos to demonstrate what problems can be solved. Presumably, the acceptance tests that cover these use-cases could be removed afterwards. In each case, find a good reference paper or so and recalculate something from this paper.

-
-As a third step in the comprehensive documentation, there should be extensive demo cases with documentation on how to use it for similar but different problems attached to them.
-
-Needs some discussion with Burkhard about the preferred format and how to integrate this into the Matlab demo cases.
-
-Ideas:
-
+* relaxation of density operators to thermal equilibrium (a la acceptance test "Thermal") with additional propagation to demonstrate the flexibility that we have.
+* Lindblad dissipation
 * some real molecule with laser pulses and multiple electronic states to demonstrate multiple states, and functors for potentials and time-dependent operators; maybe also manipulators when we project on target states or so.
-* density operators. Also with respect to changes to Chebychev propagator in this case.
-* relaxation of density operators to thermal equilibrium (a la acceptance test "Thermal") to demonstrate the flexibility that we have.
-* Redfield dissipation; should the Redfield builder be dropped along the way in favor of such a demo?
-* Lindblad dissipation
-* absorbing boundary conditions; using it in the Hamiltonian or applying them explicitly.

Ulf Lorenz - 2017-06-07

summary: Add demo showcases (Documentation improvements #3) --> Additional documented demos
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Ulf Lorenz - 2017-11-11

Milestone: Backlog --> 0.3 goal
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summary: Additional documented demos --> Add a Lindblad demo
Description has changed:

Diff:

--- old
+++ new
@@ -1,5 +1,3 @@
 Add new showcase demos to demonstrate what problems can be solved. Presumably, the acceptance tests that cover these use-cases could be removed afterwards. In each case, find a good reference paper or so and recalculate something from this paper.

-* relaxation of density operators to thermal equilibrium (a la acceptance test "Thermal") with additional propagation to demonstrate the flexibility that we have.
 * Lindblad dissipation
-* some real molecule with laser pulses and multiple electronic states to demonstrate multiple states, and functors for potentials and time-dependent operators; maybe also manipulators when we project on target states or so.

Ulf Lorenz - 2018-12-24

Milestone: 0.3 goal --> Backlog
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Ulf Lorenz - 2018-12-24

Milestone: Backlog --> 0.2.4
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Description has changed:

Diff:

--- old
+++ new
@@ -1,3 +1,4 @@
 Add new showcase demos to demonstrate what problems can be solved. Presumably, the acceptance tests that cover these use-cases could be removed afterwards. In each case, find a good reference paper or so and recalculate something from this paper.

 * Lindblad dissipation
+* remove the "Lindblad" acceptance test, as the functionality is now covered by a much nicer demo.

Ulf Lorenz - 2019-03-21

status: open --> assigned

assigned_to: Ulf Lorenz
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Description has changed:

Diff:

--- old
+++ new
@@ -2,3 +2,9 @@

 * Lindblad dissipation
 * remove the "Lindblad" acceptance test, as the functionality is now covered by a much nicer demo.
+
+----
+
+The planned demos turned out to be more complicated than anticipated. Basically, open quantum systems are always set up in the energy basis, and I lack the tools to do so conveniently right now. So there is a demo now and it is ugly as hell instead of illuminating.
+
+Deferred this issue to [#149] for now.

Tickets: #149

Description has changed:

Diff:

--- old
+++ new
@@ -8,3 +8,4 @@
 The planned demos turned out to be more complicated than anticipated. Basically, open quantum systems are always set up in the energy basis, and I lack the tools to do so conveniently right now. So there is a demo now and it is ugly as hell instead of illuminating.

 Deferred this issue to [#149] for now.
+Also split of other issues to handle the ugliness apparent in the demos: [#157], [#158], [#160]

status: assigned --> done
assigned_to: Ulf Lorenz --> nobody

Tickets: #149
Tickets: #157
Tickets: ~~#158~~
Tickets: #160

Description has changed:

Diff:

--- old
+++ new
@@ -8,4 +8,4 @@
 The planned demos turned out to be more complicated than anticipated. Basically, open quantum systems are always set up in the energy basis, and I lack the tools to do so conveniently right now. So there is a demo now and it is ugly as hell instead of illuminating.

 Deferred this issue to [#149] for now.
-Also split of other issues to handle the ugliness apparent in the demos: [#157], [#158], [#160]
+Also split of other issues to handle the ugliness apparent in the demos: [#155], [#157], [#158], [#160]

Tickets: #149
Tickets: ~~#155~~
Tickets: #157
Tickets: ~~#158~~
Tickets: #160

Add a Lindblad demo

Time-dependent simulation of open and closed quantum systems

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#70 Add a Lindblad demo

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