Luttinger Liquid in the Core of a Screw Dislocation in Helium-4

by: M Boninsegni, AB Kuklov, L Pollet, NV Prokof'ev, BV Svistunov, M Troyer

Physical Review Letters, Vol. 99, No. 3. (2007)

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Abstract

On the basis of first-principles Monte Carlo simulations we find that the screw dislocation along the hexagonal axis of an hcp 4He crystal features a superfluid (at T0) core. This is the first example of a regular quasi-one-dimensional supersolid—the phase featuring both translational and superfluid orders, and one of the cleanest cases of a Luttinger-liquid system. In contrast, the same type of screw dislocation in solid H2 is insulating.

@article{citeulike:2749938, abstract = {On the basis of first-principles Monte\ Carlo simulations we find that the screw dislocation along the hexagonal axis of an hcp 4He crystal features a superfluid (at T0) core. This is the first example of a regular quasi-one-dimensional supersolid\—the phase featuring both translational and superfluid orders, and one of the cleanest cases of a Luttinger-liquid system. In contrast, the same type of screw dislocation in solid H2 is insulating.}, author = {Boninsegni, M. and Kuklov, A. B. and Pollet, L. and Prokof'ev, N. V. and Svistunov, B. V. and Troyer, M. }, citeulike-article-id = {2749938}, doi = {10.1103/PhysRevLett.99.035301}, journal = {Physical Review Letters}, keywords = {2007, focus, material, structure}, number = {3}, posted-at = {2008-05-03 20:38:22}, priority = {2}, publisher = {APS}, title = {Luttinger Liquid in the Core of a Screw Dislocation in Helium-4}, url = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal\&id=PRLTAO000099000003035301000001\&idtype=cvips\&gifs=yes}, volume = {99}, year = {2007} }

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TY - JOUR ID - citeulike:2749938 TI - Luttinger Liquid in the Core of a Screw Dislocation in Helium-4 JF - Physical Review Letters VL - 99 IS - 3 PB - APS N2 - On the basis of first-principles Monte Carlo simulations we find that the screw dislocation along the hexagonal axis of an hcp 4He crystal features a superfluid (at T0) core. This is the first example of a regular quasi-one-dimensional supersolid—the phase featuring both translational and superfluid orders, and one of the cleanest cases of a Luttinger-liquid system. In contrast, the same type of screw dislocation in solid H2 is insulating. KW - 2007 KW - focus KW - material KW - structure AU - Boninsegni, M AU - Kuklov, AB AU - Pollet, L AU - Prokof'ev, NV AU - Svistunov, BV AU - Troyer, M PY - 2007/// UR - http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PRLTAO000099000003035301000001&idtype=cvips&gifs=yes ER -

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