Detangling flat bands into Fano lattices
Macroscopically degenerate flat bands (FB) in periodic lattices host compact localized states
which appear due to destructive interference and local symmetry. Interference provides a …
which appear due to destructive interference and local symmetry. Interference provides a …
Non-Hermitian tight-binding network engineering
S Longhi - Physical Review A, 2016 - APS
We suggest a simple method to engineer a tight-binding quantum network based on proper
coupling to an auxiliary non-Hermitian cluster. In particular, it is shown that effective complex …
coupling to an auxiliary non-Hermitian cluster. In particular, it is shown that effective complex …
Encrypting Majorana fermion qubits as bound states in the continuum
We theoretically investigate a topological Kitaev chain connected to a double quantum-dot
(QD) setup hybridized with metallic leads. In this system we observe the emergence of two …
(QD) setup hybridized with metallic leads. In this system we observe the emergence of two …
[HTML][HTML] Engineering the electronic structure of zigzag graphene nanoribbons with periodic line defect
C Chakravarty, B Mandal, P Sarkar - Physics Letters A, 2017 - Elsevier
By using first principle calculations we have studied the magnetic, electronic and transport
properties of zigzag-graphene nanoribbon (zGNR) with a topological line defect (LD) …
properties of zigzag-graphene nanoribbon (zGNR) with a topological line defect (LD) …
Transport properties in a non-Hermitian triple-quantum-dot structure
LL Zhang, WJ Gong - Physical Review A, 2017 - APS
In this paper, we study the effect of PT-symmetric complex potentials on the transport
properties of one non-Hermitian system, which is formed by the coupling between a triple …
properties of one non-Hermitian system, which is formed by the coupling between a triple …
Decay of bound states in the continuum of Majorana fermions induced by vacuum fluctuations: Proposal of qubit technology
We report on a theoretical investigation of the interplay between vacuum fluctuations,
Majorana quasiparticles (MQPs), and bound states in the continuum (BICs) by proposing a …
Majorana quasiparticles (MQPs), and bound states in the continuum (BICs) by proposing a …
[HTML][HTML] Majorana bound state in the continuum and Fano effect formed by the coupling of two Andreev-reflection channels
T Gong, BY Zhang, YL Zhu, SF Zhang, WJ Gong - Results in Physics, 2024 - Elsevier
Majorana-induced Andreev reflection (AR) is theoretically investigated by considering the
interplay between two AR channels, each of which is formed by the lead and its coupled …
interplay between two AR channels, each of which is formed by the lead and its coupled …
Quantized electron transport through graphene nanoconstrictions
V Clericò, JA Delgado‐Notario… - … status solidi (a), 2018 - Wiley Online Library
Here, the quantization of Dirac fermions in lithographically defined graphene
nanoconstrictions is studied. Quantized conductance is observed in single nanoconstrictions …
nanoconstrictions is studied. Quantized conductance is observed in single nanoconstrictions …
Catching the bound states in the continuum of a phantom atom in graphene
We explore theoretically the formation of bound states in the continuum (BICs) in graphene
hosting two collinear adatoms situated at different sides of the sheet and at the center of the …
hosting two collinear adatoms situated at different sides of the sheet and at the center of the …
[HTML][HTML] High Ion/Ioff current ratio graphene field effect transistor: the role of line defect
MH Tajarrod, HR Saghai - Beilstein Journal of …, 2015 - beilstein-journals.org
The present paper casts light upon the performance of an armchair graphene nanoribbon
(AGNR) field effect transistor in the presence of one-dimensional topological defects. The …
(AGNR) field effect transistor in the presence of one-dimensional topological defects. The …