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For all matters related to condensed matter physics.
20
votes
1
answer
160
views
What class of materials are closest to realizing the tunable coupling Hamiltonian?
From a physics point of view, there is an effective (approximation to second-order coupling Jaynes-Cummings) Hamiltonian of the form [1]
\begin{equation}
H=\sum_j\omega_j(t)\sigma_j^z+\sum_{\langle i, …
17
votes
1
answer
651
views
How to find the projected Hamiltonian for lowest flat-band in general?
In [1], starting with the bosonic Hamiltonian (Eqn. 1) for the dice lattice model with half flux density (with Ahronov-Bohm phases incorporated),
\begin{equation}
H=-t\sum_{\langle j,\mu\rangle}(a^\da …
16
votes
1
answer
84
views
What are good resources to study crystallographic defects in different dimensional systems a...
I wonder if there are any books or resources that may address one or more of the following questions:
What kinds of defects are important for topology? Especially crystallographic defects.
How do th …