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pro vyhledávání: '"Hyun C. Lee"'
Autor:
Jae Hyuck Lee, Hyun C. Lee
Publikováno v:
Journal of the Korean Physical Society. 79:173-184
A one-dimensional p-wave topological superconductor deformed by a sine-square-deformation is studied in the framework of machine learning. A supervised learning algorithm is applied with a convolutional neural network to discern the existence of a Ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3df8b10546ec6ddbc450b85b6f694d5
https://doi.org/10.1007/s40042-021-00180-5
https://doi.org/10.1007/s40042-021-00180-5
Autor:
Hyun C. Lee, Jae Hyuck Lee
Publikováno v:
Journal of the Korean Physical Society. 75:997-1003
The sine-square deformation of the lattice model of one-dimensional p-wave topological superconductor is studied focusing on the existence of the zero energy Majorana fermion localized at the ends of the superconductor. The deformation is applied in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b55c0d6ede682270eca9c80def5f246a
https://doi.org/10.3938/jkps.75.997
https://doi.org/10.3938/jkps.75.997
Autor:
Hyun C. Lee
Publikováno v:
Journal of the Korean Physical Society. 73:1735-1743
Excitons are the most prominent features of the optical properties of monolayer transition-metal dichalcogenides(TMDC). In view of optoelectronics it is very important to understand the decay mechanisms of the excitons of these materials. Auger recom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b3b56ccec0c135c6a7855514fe1f7b2
https://doi.org/10.3938/jkps.73.1735
https://doi.org/10.3938/jkps.73.1735
Autor:
Jae Hyuck Lee, Hyun C. Lee
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 135:114986
The non-equilibrium dynamics of the excitonic insulator order parameter in the excitonic insulator phase of the Falicov–Kimball model excited by ultrashort laser pulse is studied. The Keldysh–Schwinger functional integral method with the saddle p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7aebfb76d49b6fbbf83f3cc614ff5acf
https://doi.org/10.1016/j.physe.2021.114986
https://doi.org/10.1016/j.physe.2021.114986
Autor:
Hyun C. Lee
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 81:182-191
The phonon dynamics of normal metal in the coherent regime of ultrafast spectroscopy is studied based on the non-equilibrium gauge invariant Green's function method. The non-equilibrium phonon self-energy is computed explicitly as a function of time
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f4a5951efe187a72bf7ac66c14b2bff
https://doi.org/10.1016/j.physe.2016.03.007
https://doi.org/10.1016/j.physe.2016.03.007
Autor:
Hyun C. Lee
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 79:44-51
The photocurrent of surface states of topological insulator due to photon-drag effect is computed, being based on pure Dirac model of surface states. The scattering by disorder is taken into account to provide a relaxation mechanism for the photocurr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77b5443bf27a1578d1d8c37d1780f213
https://doi.org/10.1016/j.physe.2015.12.005
https://doi.org/10.1016/j.physe.2015.12.005
Autor:
Hyun C. Lee
Publikováno v:
Physical Review B. 95
Motivated by photocurrent spectroscopy experiments with $\mathrm{Mo}{\mathrm{S}}_{2}$, the direct band-to-band transition contribution to the photocurrent of transition-metal dichalcogenides is computed starting from the microscopic Hamiltonian in th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71325c7d77a0eac709483be89c1d8b47
https://doi.org/10.1103/physrevb.95.245102
https://doi.org/10.1103/physrevb.95.245102
Autor:
Hyun C. Lee
Publikováno v:
International Journal of Modern Physics B. 16:1499-1509
The optical conductivities of two one-dimensional narrow-gap semiconductors, anticrossing quantum Hall edge states and carbon nanotubes, are studied using bosonization method. A lowest order renormalization group analysis indicates that the bare band
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::faf0016ee11932664c4b97f5330b368e
https://doi.org/10.1142/s0217979202010361
https://doi.org/10.1142/s0217979202010361
Autor:
S. R. Eric Yang, Hyun C. Lee
Publikováno v:
Physical Review B. 62:2372-2376
Two one-dimensional Luttinger liquid systems coupled by Hund's coupling are studied by the renormalization group and the non-abelian bosonization methods. It is found that the Hund's coupling is always relevant irrespective of the repulsive interacti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c27e57a8b5c4efdb6bc6c5892fac347
https://doi.org/10.1103/physrevb.62.2372
https://doi.org/10.1103/physrevb.62.2372
Autor:
Hyun C. Lee
Publikováno v:
Physical Review B. 59:8037-8042
The point contact tunneling conductance between edges of the spin singlet $\ensuremath{\nu}=2/3,\mathrm{K\ifmmode \hat{}\else \^{}\fi{}}=(3/3/0)$ quantum Hall states is studied both in the quasiparticle tunneling picture and in the electron tunneling
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::573483740aef2936b51ae3411b2d0d72
https://doi.org/10.1103/physrevb.59.8037
https://doi.org/10.1103/physrevb.59.8037