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I am a student doing my graduate research by using the QuSpin.
I am finding a way of implementing functions of any operator such as
\sum_{i, j} a^{\dagger}_{i} f(n_{i} - n_{j}) a_{j},
where f(x) …
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In relation to #90, and through [discussions on Gitter](https://gitter.im/JuliaDiffEq/Lobby?at=5986fad645fc670746fc69a7), there is an idea of creating a dual interface to the solvers for linear proble…
jagot updated
4 years ago
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This issue is on behalf of [a post in the forums by Louis Fry](https://groups.google.com/forum/#!topic/qutip/93uSuJGK_Jk) who is trying to implement Lindblad operators which cannot be written in the f…
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# Subject of the issue
Several courses either show no downloadable video or only download video from sections where no other video exists (some landing pages have mixed video and text and others have…
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#### Description
When I attempt to establish a quantum network bridge it fails to connect. Despite this, the sides of the bridge DO light up on the sides while the corners don't. I have tried r…
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I'm trying to make my character entity reposition itself after colliding with another entity.
For some reason I keep getting this crash error message:
java.lang.IllegalStateException: Physics worl…
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I am distributing some qutip code to several cores. I want to enforce that qutip only uses one core per job with qutip.settings.num_cpus=1, but it is not working, the processes still take all the proc…
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I've got some problems with the charge density calculation. In my density.param I specify a density of ```13.559e+27 m^-3``` and I use it for both carbon ions and electrons as they come in equal numbe…
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* Krotov version: 0.3.0
* Python version: 3.7.4
* Operating System: Ubuntu
### Description
I tried to modify the [simple_state_to_state](https://github.com/qucontrol/krotov/blob/master/docs/note…
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# Abstract
How does quantum information move in a many-qubit system, and can we measure its dynamics in a quantum processor? Out-of-time ordered correlations (OTO) have been proposed as a tool for me…