---
# System prepended metadata

title: Hotnano Project Meeting 12-05-2022

---

# Hotnano Project Meeting 12-05-2022

* In thin films, what happens if you break the mirror symmetry and add a superconductor to get Majorana-Kramers pairs? The mirror symmetry breaking should be smooth enough to suppress backscattering.
* 3D QSHI? Heat turning the corner idea?
* Computing bound states on the surface given a half-space infinite 2D system. Bound state solver. Go with the simplest model. 
* Think about surface calculation
* Check with William if he knows all these things.

# From Sebastian's notes

- Recap meeting in Twente: 
- go ultrathin and hybridize two of the surfaces. -> Expect "double" QSH (backscattering) from mirror Chern number. Breaking mirror symmetry should gap these out.
- Check Loss, Klinovaja again for their work on QSH, SC interfaces.
- Check mirror planes in SnTe 
- What happens with hinge modes in rounded corners?
- 3D QSH via helical hinge states along the edges for heat transport -> Heat engines fro 3D QSH
- William does Qsymm and bandstructure cals (atm)

Interesting in this context is to simulate infinite (in two directions) surfaces
- In this regard interesting might be the paper from Xavier's group 
    - Find two Dirac cones on surface
    - Find the symmetries and systematically study breaking them for new mechanisms
    - -> kwant bound state solver is method for this

Different ways
- Feed Ham into Qsymm to get Syms or other way around

Actions:
- Think about surface calc
-  New mechanisms