TY - JOUR
T1 - Coherent states for dispersive pseudo-Landau-levels in strained honeycomb lattices
AU - Díaz-Bautista, Erik
AU - Oliva-Leyva, Maurice
N1 - Publisher Copyright:
© 2021, The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature.
PY - 2021/7
Y1 - 2021/7
N2 - Dirac fermions in graphene may experiment dispersive pseudo-Landau levels due to a homogeneous pseudomagnetic field and a position-dependent Fermi velocity induced by strain. In this paper, we study the (semi-classical) dynamics of these particles under such a physical context from an approach of coherent states. For this purpose we use a Landau-like gauge to built Perelomov coherent states by the action of a non-unitary displacement operator D(α) on the fundamental state of the system. We analyze the time evolution of the probability density and the generalized uncertainty principle as well as the Wigner function for the coherent states. Our results show how x-momentum dependency affects the motion periodicity and the Wigner function shape in phase space.
AB - Dirac fermions in graphene may experiment dispersive pseudo-Landau levels due to a homogeneous pseudomagnetic field and a position-dependent Fermi velocity induced by strain. In this paper, we study the (semi-classical) dynamics of these particles under such a physical context from an approach of coherent states. For this purpose we use a Landau-like gauge to built Perelomov coherent states by the action of a non-unitary displacement operator D(α) on the fundamental state of the system. We analyze the time evolution of the probability density and the generalized uncertainty principle as well as the Wigner function for the coherent states. Our results show how x-momentum dependency affects the motion periodicity and the Wigner function shape in phase space.
UR - http://www.scopus.com/inward/record.url?scp=85111321959&partnerID=8YFLogxK
U2 - 10.1140/epjp/s13360-021-01753-w
DO - 10.1140/epjp/s13360-021-01753-w
M3 - Artículo
AN - SCOPUS:85111321959
SN - 2190-5444
VL - 136
JO - European Physical Journal Plus
JF - European Physical Journal Plus
IS - 7
M1 - 765
ER -