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Dear all,
since a few weeks r-stan (current cran version) fails to load after compilation with following error:
TypeError: Object # has no method 'imul'
A similar error has been reported here: …
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I'm not sure how to convert the MPO representation as `Vector` of the Hamiltonian for ex. the transverse Ising chain into MPSKit's `MPOHamiltonian`. I think it can be casted into a periodic array but…
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**When installing mrsimulator from pip it gives this long error.**
Preparing metadata (pyproject.toml) ... error
error: subprocess-exited-with-error
× Preparing metadata (pyproject.toml) d…
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Here I'd like to discuss how to represent the block structure (i.e. orbital groups corresponding to each cell/site) of two types of objects:
1. Bloch Hamiltonians such as `h(φs; params...)`, which …
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I tried reproducing the Hamiltonians using PySCF. This gave me a MAE of 2[μHa].
**Question 0.** Any chance you could release the code to reproduce the dataset? (I likely just made a mistake)
**…
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## Name
Isidora Araya Day
## Affiliation
TU Delft
## Email
i.m.arayaday@tudelft.nl
## Preprint ID
## Title
Pymablock: A software package for constructing effective models
## Abs…
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This issue aims to brainstorm the design of coupled Hamiltonians (let's call them `BlockHamiltonian` for the moment) so that it can cover a wide range of possible geometries. It's sometimes useful to …
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### Environment
- **Qiskit Nature version**: qiskit-nature==0.5.2
- **Python version**: 3.10.10
- **Operating system**: macos
### What is happening?
Calling simplify on a FermionicOp doesn't yi…
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Hello, I notice that when we run QAOA.
We tend to get the following error message:
> Calculating the dense form of a symbolic Hamiltonian. This operation is memory inefficient.
Is it due t…
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I encountered the following error while performing the evaluation process:
##############################################################
``` Traceback (most recent call last):
File "/home/zjl…