量子理論ユニット (ニック・シャノン)

 

Theory of Quantum Matter

量子物質が示す物質は、それらの中を運動する電子がいかにお互いに相互作用するかによって支配されています。銅などの金属では電子はお互いを無視して運動していますが、量子物質では電子同士が「ソーシャルライフ(社会生活)」を営みます。量子理論ユニットの主な研究目標は、集団となって運動する電子間の相互作用に関する新しい物理法則を発見することです。

研究成果

"Experimental signatures of emergent quantum electrodynamics in a quantum spin ice"
Romain Sibille, Nicolas Gauthier, Han Yan, Monica Ciomaga Hatnean, Jacques Ollivier, Barry Winn, Geetha Balakrishnan, Michel Kenzelmann, Nic Shannon, Tom Fennell
Nature Physics (2018)

"Competing spin liquids and hidden spin-nematic order in spin ice with frustrated transverse exchange"
Mathieu Taillefumier, Owen Benton, Han Yan, Ludovic Jaubert and Nic Shannon
Phys. Rev. X 7, 041057 (2017)

"Spin Ice Thin Film: Surface Ordering, Emergent Square Ice, and Strain Effects"
L.D.C. Jaubert , T. Lin, T.S. Opel, P.C.W. Holdsworth and M.J.P. Gingras
Phys. Rev. Lett. 118, 207206 (2017)

"Theory of multiple-phase competition in pyrochlore magnets with anisotropic exchange, with application to Yb2Ti2O7, Er2Ti2O7 and Er2Sn2O7"
Han Yan, Owen Benton, L.D.C. Jaubert and Nic Shannon
Phys. Rev. B 95, 094422 (2017)
Highly Cited Paper
Identified by Web of Science as being in the top 1% of Physics publications on the basis of citations in the field and publication year. Top 10 most-cited publications in PRB 2017.

"From pinch points to pinch lines: a new spin liquid on the pyrochlore lattice"
Owen Benton, L. D. C. Jaubert, Han Yan and Nic Shannon
Nature Communications 7, 11572 (2016)
Featured on the OIST website, Phys.org, Nanowerk, Technobahn, Science Daily, Science Newsline, Alpha Galileo and EurekAlert! from the AAAS.

"Classical and quantum theories of proton disorder in hexagonal water ice" 
Owen Benton, Olga Sikora and Nic Shannon
Phys. Rev. B 93, 125143 (2016)
Featured on the OIST website, Asian Scientist, Technobahn, Science Daily, Science Newsline, Science Codex, Phys.org, Space Daily, My Informs, R&D and EurekAlert! from the AAAS.

"Quantum solitons with emergent interactions in a model of cold atoms on the triangular lattice"
Hiroaki T. Ueda, Yutaka Akagi, and Nic Shannon
Phys. Rev. A. 93, 021606(R) (2016)
Selected for inclusion in Kaleidoscope.

"A Kagome Map of Spin Liquids from XXZ to Dzyaloshinskii-Moriya Ferromagnet"
Karim Essafi, Owen Benton and L.D.C. Jaubert
Nature Communications 7, 10297 (2016)
Featured on the OIST website, Asian Scientist, Nanowerk, Technobahn, Science Daily, Science Newsline, Alpha Galileo, Science Codex, Phys.org and EurekAlert! from the AAAS.