The tutorial quantum_wire.py giving different result
Hi, I am a beginner to Kwant. I want to use it for computing conductance through an interface. To learn the basics, I started with the tutorials in the documentation. The tutorial quantum_wire.py is giving me very different result for the conductance than what I expect from the documentation (see the attachments). However, I have used it to compute band structure and Fermi arcs states in Weyl semimetals and that seem to work perfectly fine. I have installed Kwant through conda in my MacBook Air M1(Ventura 13.3.1). I don’t understand why the tutorial quantum_wire.py is not working properly in my machine. Do you think it is a compiler issue? Any help would be much appreciated. Thank you, Faruk Graduate Student Harish-Chandra Research Institute Prayagraj, 211019, India
Hi Faruk, This indeed looks like an issue in underlying linear algebra libraries. Can you please run kwant.test() and see if any tests fail? Best, Anton On Thu, 27 Apr 2023 at 15:08, Faruk Abdulla <farukhrim@gmail.com> wrote:
Hi,
I am a beginner to Kwant. I want to use it for computing conductance through an interface. To learn the basics, I started with the tutorials in the documentation. The tutorial quantum_wire.py is giving me very different result for the conductance than what I expect from the documentation (see the attachments). However, I have used it to compute band structure and Fermi arcs states in Weyl semimetals and that seem to work perfectly fine.
I have installed Kwant through conda in my MacBook Air M1(Ventura 13.3.1). I don’t understand why the tutorial quantum_wire.py is not working properly in my machine. Do you think it is a compiler issue? Any help would be much appreciated.
Thank you, Faruk
Graduate Student Harish-Chandra Research Institute Prayagraj, 211019, India
Hi Anton, Thank you very much for your time. I ran the test "kwant.test()” and got total 22 tests failed. I have attached the outputs to this email. Please let me know if there is a way to fix it. P.S: I have installed Kwant on another machine MacBook Air (Intel chip, macOS Monterey) to see whether it works fine there. It seems to work perfectly fine. No error. I ran the test "kwant.test()” and got no error! Regards, Faruk
On 27-Apr-2023, at 6:56 PM, Anton Akhmerov <anton.akhmerov+kd@gmail.com> wrote:
Hi Faruk,
This indeed looks like an issue in underlying linear algebra libraries. Can you please run kwant.test() and see if any tests fail?
Best, Anton
On Thu, 27 Apr 2023 at 15:08, Faruk Abdulla <farukhrim@gmail.com> wrote:
Hi,
I am a beginner to Kwant. I want to use it for computing conductance through an interface. To learn the basics, I started with the tutorials in the documentation. The tutorial quantum_wire.py is giving me very different result for the conductance than what I expect from the documentation (see the attachments). However, I have used it to compute band structure and Fermi arcs states in Weyl semimetals and that seem to work perfectly fine.
I have installed Kwant through conda in my MacBook Air M1(Ventura 13.3.1). I don’t understand why the tutorial quantum_wire.py is not working properly in my machine. Do you think it is a compiler issue? Any help would be much appreciated.
Thank you, Faruk
Graduate Student Harish-Chandra Research Institute Prayagraj, 211019, India
participants (2)
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Anton Akhmerov -
Faruk Abdulla