{"id":11708,"date":"2026-05-28T17:00:14","date_gmt":"2026-05-28T08:00:14","guid":{"rendered":"https:\/\/physics.gist.ac.kr\/?post_type=research_news&#038;p=11708"},"modified":"2026-05-29T16:46:21","modified_gmt":"2026-05-29T07:46:21","slug":"%eb%82%a8%ec%b0%bd%ed%9d%ac-%ea%b5%90%ec%88%98%eb%8b%98-isuils-2025%ec%97%90%ec%84%9c-isuils-%eb%a9%94%eb%8b%ac-%ec%88%98%ec%83%81-2-2","status":"publish","type":"research_news","link":"https:\/\/physics.gist.ac.kr\/en\/news-events\/research_highlights_news\/%eb%82%a8%ec%b0%bd%ed%9d%ac-%ea%b5%90%ec%88%98%eb%8b%98-isuils-2025%ec%97%90%ec%84%9c-isuils-%eb%a9%94%eb%8b%ac-%ec%88%98%ec%83%81-2-2\/","title":{"rendered":"[\uc2e0\ub3d9\ube48 \uad50\uc218] \uad11\uacf5\ub3d9 \ub0b4 \uc9c4\uacf5 \uc694\ub3d9\uc744 \uc774\uc6a9\ud55c \uc704\uc0c1\ud559\uc801 \uc591\uc790 \uc0c1 \uc124\uacc4"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1920\" height=\"1723\" src=\"https:\/\/physics.gist.ac.kr\/wp-content\/uploads\/2026\/05\/Figure_media-1.jpg\" alt=\"\" class=\"wp-image-11710\" title=\"\"><\/figure>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\">\u25b2 \uad11\uc790\uc7a5\uc5d0 \uc758\ud574 \uc720\ub3c4\ub41c HgTe\uc758 \uc704\uc0c1 \uc0c1\uc804\uc774 \ubaa8\uc2dd\ub3c4. (\uac00) HgTe\uc758 \uc704\uc0c1 \uc0c1\uc804\uc774\ub97c \ub098\ud0c0\ub0b8\ub2e4. \uc544\uc8fc \uc791\uc740 \uac70\uc6b8 \uc0c1\uc790(\uad11\ud559 \uacf5\ub3d9) \uc548\uc5d0 \ube5b\uc744 \uac00\ub450\uba74 \ubb3c\uc9c8\uacfc \ube5b\uc774 \uac15\ud558\uac8c \uc5bd\ud788\uba74\uc11c \uc11c\ub85c \uc601\ud5a5\uc744 \uc8fc\uace0\ubc1b\uac8c \ub41c\ub2e4. (\ub098) \uae30\uc874\uc5d0\ub294 \uc704\uc0c1 \uc131\uc9c8\uc774 \uc5c6\ub294 \ud3c9\ubc94\ud55c \uae08\uc18d\uc5d0 \uac00\uae4c\uc6b4 \ubb3c\uc9c8\uc778 HgTe\uac00 \ube5b\uc758 \ud3b8\uad11 \ubc29\ud5a5\uc744 \uc5b4\ub5bb\uac8c \ub9de\ucd94\ub290\ub0d0\uc5d0 \ub530\ub77c \uc804\ud600 \ub2e4\ub978 \uc704\uc0c1 \ubb3c\uc9c8\ub85c \ubcc0\ud558\uac8c \ub41c\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc2e0\ub3d9\ube48 \uad50\uc218\uc640 \ub3c5\uc77c \ub9c9\uc2a4\ud50c\ub791\ud06c \uc5f0\uad6c\uc18c \uacf5\ub3d9\uc5f0\uad6c\ud300\uc740 \uad11\uacf5\ub3d9(optical cavity) \ubc0f \ub3c4\ud30c\uad00(waveguide)\uacfc \uac19\uc740 \uad11\uc790 \uad6c\uc870 \ub0b4\uc5d0\uc11c \ubc1c\uc0dd\ud558\ub294 \uac15\ud55c \ube5b-\ubb3c\uc9c8 \uc0c1\ud638\uc791\uc6a9\uc744 \ud65c\uc6a9\ud574 \uc591\uc790 \ubb3c\uc9c8\uc758 \uc704\uc0c1\ud559\uc801 \uc0c1(topological phase)\uc744 \ub2a5\ub3d9\uc801\uc73c\ub85c \uc870\uc808\ud560 \uc218 \uc788\uc74c\uc744 \uc774\ub860\uc801\uc73c\ub85c \uaddc\uba85\ud558\uc600\uc2b5\ub2c8\ub2e4. \ud2b9\ud788, \uad11\uc790 \uad6c\uc870 \ub0b4\uc5d0\uc11c \ud615\uc131\ub418\ub294 \uad11\uc790\uc7a5(photon field)\uc774 \ud3b8\uad11 \ub9e4\uac1c \ub300\uce6d \uae68\uc9d0(polarization-mediated symmetry breaking) \uba54\ucee4\ub2c8\uc998\uc744 \ud1b5\ud574 \uace0\uccb4 \ub0b4\uc5d0 \uc0c8\ub85c\uc6b4 \uc704\uc0c1\ud559\uc801 \uc0c1\uc744 \uc720\ub3c4\ud560 \uc218 \uc788\uc74c\uc744 \uc81c\uc2dc\ud558\uc600\uc2b5\ub2c8\ub2e4. \ucd5c\uc2e0 \uc591\uc790\uc804\uae30\uc5ed\ud559 \ubc00\ub3c4\ubc94\ud568\uc218\uc774\ub860(QEDFT) \uacc4\uc0b0\uc744 \ud1b5\ud574, HgTe\uc758 \uc804\uc790 \uad6c\uc870\uc640 \uc774\uc628 \uad6c\uc870\uac00 \uac15\ud55c \ube5b-\ubb3c\uc9c8 \uacb0\ud569\uc5d0 \uc758\ud574 \uc7ac\uad6c\uc131\ub418\uba70, \uc2dc\ub8cc\uc758 \uacb0\uc815 \ubc29\ud5a5\uacfc \uacb0\ud569 \uc138\uae30\uc5d0 \ub530\ub77c Weyl \uc0c1, nodal-line \uc0c1, \uc704\uc0c1 \uc808\uc5f0\uccb4 \uc0c1\uc774 \uc120\ud0dd\uc801\uc73c\ub85c \ub098\ud0c0\ub0a0 \uc218 \uc788\uc74c\uc744 \uc785\uc99d\ud558\uc600\uc2b5\ub2c8\ub2e4. \uc774\ub294 \ub808\uc774\uc800 \uad6c\ub3d9 \ud604\uc0c1\uacfc \ub2ec\ub9ac \uc815\uc0c1\uc0c1\ud0dc(steady-state)\uc758 \uad11\uc790-\ubb3c\uc9c8 \ud63c\uc131\ud654\uc5d0\uc11c \ube44\ub86f\ub418\ub294 \ud6a8\uacfc\ub85c, \uacac\uace0\ud55c \ub2e4\uc218\uc758 \uc704\uc0c1\ud559\uc801 \uc0c1\uc774 \ub3d9\uc2dc\uc5d0 \uad6c\ud604\ub420 \uc218 \uc788\uc74c\uc744 \ubcf4\uc600\uc2b5\ub2c8\ub2e4. \ubcf8 \uc5f0\uad6c\ub294 \uad11\uc790 \uad6c\uc870 \ub0b4 \uc9c4\uacf5 \uc694\ub3d9(vacuum fluctuation)\uc744 \uc774\uc6a9\ud574 \ubb3c\uc9c8\uc758 \ud2b9\uc131\uc744 \uc124\uacc4\ud558\uace0, \uc591\uc790 \ubb3c\uc9c8\uc5d0\uc11c \ud48d\ubd80\ud55c \uc704\uc0c1\ud559\uc801 \ud604\uc0c1\uc744 \uc628\ub514\ub9e8\ub4dc(on-demand) \ubc29\uc2dd\uc73c\ub85c \uad6c\ud604\ud560 \uc218 \uc788\ub294 \uc0c8\ub85c\uc6b4 \ud328\ub7ec\ub2e4\uc784\uc744 \uc81c\uc2dc\ud558\uc600\uc2b5\ub2c8\ub2e4. [Science Advances, IF: 12.5]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Professor Dongbin Shin, in collaboration with the Max Planck Institute in Germany, has theoretically demonstrated that strong light\u2013matter interactions in photonic structures\u2014such as optical cavities and waveguides\u2014can be exploited to engineer topological phases in quantum materials on demand. The team showed that photon fields confined in photonic structures induce emergent topological phases in solids through a polarization-mediated symmetry-breaking mechanism. Using state-of-the-art quantum electrodynamic density functional theory (QEDFT) calculations, they demonstrated that strong light\u2013matter coupling reconfigures both the electronic and ionic structures of HgTe, selectively driving the system into Weyl, nodal-line, or topological insulator phases depending on the sample orientation and the coupling strength. In contrast to laser-driven phenomena, the photon field\u2013induced symmetry breaking originates from steady-state photon\u2013matter hybridization, enabling multiple robust topological states to coexist. The study establishes that vacuum fluctuations in photonic structures can serve as a versatile tool to engineer material properties and realize rich topological phenomena in quantum materials on demand. [Science Advances, IF: 12.5]<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Authors: Dongbin Shin (FA, CA), I-Te Lu, Benshu Fan, Emil Vi\u00f1as Bostr\u00f6m, Hang Liu, Mark Kamper Svendsen, Simone Latini, Peizhe Tang(CA), and Angel Rubio (CA)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/doi.org\/10.1126\/sciadv.aea5823\" target=\"_blank\" rel=\"noreferrer noopener\">doi.org\/10.1126\/sciadv.aea5823<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"featured_media":11709,"template":"","news":[27],"class_list":["post-11708","research_news","type-research_news","status-publish","has-post-thumbnail","hentry","news-research"],"acf":[],"_links":{"self":[{"href":"https:\/\/physics.gist.ac.kr\/en\/wp-json\/wp\/v2\/research_news\/11708","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/physics.gist.ac.kr\/en\/wp-json\/wp\/v2\/research_news"}],"about":[{"href":"https:\/\/physics.gist.ac.kr\/en\/wp-json\/wp\/v2\/types\/research_news"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/physics.gist.ac.kr\/en\/wp-json\/wp\/v2\/media\/11709"}],"wp:attachment":[{"href":"https:\/\/physics.gist.ac.kr\/en\/wp-json\/wp\/v2\/media?parent=11708"}],"wp:term":[{"taxonomy":"news","embeddable":true,"href":"https:\/\/physics.gist.ac.kr\/en\/wp-json\/wp\/v2\/news?post=11708"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}