Zobrazeno 1 - 10
of 90
pro vyhledávání: '"Heung-Sun Sim"'
Autor:
Sungguen Ryu, Heung-Sun Sim
Publikováno v:
Physical Review Letters. 129
7 pages (including references)+ 7 pages (supplemental material), more discussions included
Scattering or tunneling of an electron at a potential barrier is a fundamental quantum effect. Electron-electron interactions often affect the scattering,
Scattering or tunneling of an electron at a potential barrier is a fundamental quantum effect. Electron-electron interactions often affect the scattering,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3d6cad7c077494ef69035cd4824960d
https://doi.org/10.1103/physrevlett.129.166801
https://doi.org/10.1103/physrevlett.129.166801
Autor:
June-Young Lee, Heung-Sun Sim
Publikováno v:
Nature communications. 13(1)
A collider, where particles are injected to a beam splitter from opposite sides, has been used for identifying quantum statistics of identical particles. The collision leads to bunching of the particles for bosons and antibunching for fermions. In re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d36e378c2717816ae6cf7b31d8f083bd
https://pubmed.ncbi.nlm.nih.gov/36333331
https://pubmed.ncbi.nlm.nih.gov/36333331
Autor:
Junliang Wang, Hermann Edlbauer, Aymeric Richard, Shunsuke Ota, Wanki Park, Jeongmin Shim, Arne Ludwig, Andreas D. Wieck, Heung-Sun Sim, Matias Urdampilleta, Tristan Meunier, Tetsuo Kodera, Nobu-Hisa Kaneko, Hermann Sellier, Xavier Waintal, Shintaro Takada, Christopher Bäuerle
Publikováno v:
Nature Nanotechnology
Nature Nanotechnology, 2023, ⟨10.1038/s41565-023-01368-5⟩
Nature Nanotechnology, 2023, ⟨10.1038/s41565-023-01368-5⟩
International audience; Electron flying qubits are envisioned as potential information link within a quantum computer, but also promise -- alike photonic approaches -- a self-standing quantum processing unit. In contrast to its photonic counterpart,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2bf238fe7bbe8854cd67981082402e02
Autor:
Masaya Kataoka, Heung-Sun Sim, Sungguen Ryu, Clive Emary, Lewis A. Clark, Clarissa J. Barratt
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
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We consider theoretically an electronic Mach-Zehnder interferometer constructed from quantum Hall edge channels and quantum point contacts, fed with single electrons from a dynamic quantum dot source. By considering the energy dependence of the edge-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::975997c709820f7313058520a66d3b1d
https://doi.org/10.1103/physrevb.104.035436
https://doi.org/10.1103/physrevb.104.035436
Autor:
Heung-Sun Sim, Hyung Kook Choi, Yunchul Chung, Cheolhee Han, Dongkun Kim, Juho Choi, Hyoungsoon Choi, Uhjin Kim, Vladimir Umansky, Hwanchul Jung, Dongsung T. Park
Publikováno v:
Physical Review Research. 3
Mesoscopic quantum dots (QDs) are ubiquitous in quantum devices as reliable sources of hot electrons. However, we have observed an unexpectedly significant energy relaxation of QD-emitted hot electrons up to $\ensuremath{\approx}55%$ of its excitatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b615be7814200b5238ddf4fbf7676f6
https://doi.org/10.1103/physrevresearch.3.033015
https://doi.org/10.1103/physrevresearch.3.033015
Autor:
Heung-Sun Sim, Young-Seok Ghee, Myung-Ho Bae, Sungguen Ryu, Bum-Kyu Kim, Ye-Hwan Ahn, Changki Hong, Nam Kim
Publikováno v:
Journal of the Korean Physical Society. 75:331-336
Parallelization of pump devices is a direct way to increase the output level of the single-electron pump, which is required for metrological purposes. We fabricated a pair of single-electron pumps in parallel on a chip level and investigated their sy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63df469ad2eb9ef8563f0aae800fc8cb
https://doi.org/10.3938/jkps.75.331
https://doi.org/10.3938/jkps.75.331
Autor:
Myung-Ho Bae, Heung-Sun Sim, Nam Kim, Bum-Kyu Kim, Jin Dong Song, Suk-In Park, Young-Seok Ghee, Sungguen Ryu
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
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From both a fundamental viewpoint and the perspective of wave-function engineering of an electron pumped by single-electron sources, it is important to understand how an electron gains energy while propagating along a time-dependent region in a quant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e21812d155e426e39c819769b9d935d
https://doi.org/10.1103/physrevb.103.205422
https://doi.org/10.1103/physrevb.103.205422
Quantum entanglement between an impurity and its environment is expected to be central in quantum impurity problems. We develop a method to compute the entanglement in spin-1/2 impurity problems, based on the entanglement negativity and the boundary
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24071042d2e5c74279da16ada79a2f9f
Publikováno v:
Biblos-e Archivo. Repositorio Institucional de la UAM
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It has been argued that fluctuations of fermion parity are harmful for the demonstration of non-Abelian anyonic statistics. Here, we demonstrate a striking exception in which such fluctuations are actively used. We present a theory of coherent electr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d09cfee5edf605f7fcdbf25a6a8eba68
https://doi.org/10.1103/physrevlett.125.187702
https://doi.org/10.1103/physrevlett.125.187702
Publikováno v:
Physical Review B. 101
We theoretically study charge Kondo effects in a quadruple quantum dot. This system has been realized in a carbon nanotube [Nature (London) 535, 395 (2016)] by A. Hamo et al., while it can be also formed in a two-dimensional electron gas (2DEG). The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3adc241ffaf72dfe16a4133fa23ff7bc
https://doi.org/10.1103/physrevb.101.245307
https://doi.org/10.1103/physrevb.101.245307