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artiste-qb-net / qubiter

Python tools for reading, writing, compiling, simulating quantum computer circuits. Includes numpy and tensorflow backends. “Quantum Space, the final frontier. These are the voyages of the starship Qubiter. Its five-year mission: to explore strange new worlds, to seek out new life and new civilizations, to boldly go where no man has gone before.”
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Blog post about doing quantum chemistry with Qubiter #3

Open rrtucci opened 8 years ago

rrtucci commented 8 years ago

https://qbnets.wordpress.com/2016/05/28/dont-tell-microsoft-qubiter-an-open-source-platform-can-now-do-quantum-chemistry-too/

rtheo commented 8 years ago

Wow! And what does "No good" stands for?(!)

rtheo commented 8 years ago

I am just reading your ph-est... manual and I see an opportunity. If it solves the full time dependent case could it be used to approximate what happens in the case of a chain of say, copper atoms when subjected to a strong abrupt Stark term? (I am talking of including your work in a serious publication not just playing around with it so I must be sure what kind of approximation we are talking about in such a case. I will probably need your help in that.)

rrtucci commented 8 years ago

I used No Good for some files I wanted to delete, I didn't mean to upload those files in the first place

rrtucci commented 8 years ago

I think the Trotter approximation is super general and you could use it to solve any quantum evolution for which H is independent of time. If H depends on t, I'm sure you can do a very similar approximation. There is also the second order Trotter Suzuki which I didn't implement in the software but is more accurate and is easy to implement too. I will add it into the software in the near future. Take a look at Suzuki's papers They are very easy to understand

BramDo commented 7 years ago

Great application I am trying to simulate the H2_ground_state circuit. How to setup the simulation file? I attached the file

phase_est_iterative-Copy1.pdf

rrtucci commented 7 years ago

sensor1, As originally set up, notebook phase_est_iterative.ipynb simulates a 2 qubit circuit. But you replaced that by file_prefix = 'chemistry/chem_io_folder/H2_ground_state' which is an 8 qubit circuit. But you are still using an initial state vector for only 2 qubits init_st_vec = SEO_simulator.get_standard_basis_st([0, 0])

BramDo commented 7 years ago

I changed it according to the remark and I have a state vector now. Do you have tricks and tips. The software is very impressive and opensource and therefore more possibilities than liquid. I hope to use it in the IBM experience in some way. phase_est_iterative-Copy1.pdf

rrtucci commented 7 years ago

Thanks sensor1. Keep in touch