caa a22 4500 445366214 CHVBK 20180317142931.0 cr unu---uuuuu 170323e20110301xx s 000 0 eng 10.1007/s10909-010-0288-y doi (NATIONALLICENCE)springer-10.1007/s10909-010-0288-y Glide and Superclimb of Dislocations in Solid 4He [Elektronische Daten] [D. Aleinikava, E. Dedits, A. Kuklov] Glide and superclimb—climb assisted by superfluidity along dislocation core—of quantum dislocations are studied by Monte Carlo simulations of the effective string model subjected to Peierls potential, tilting and external force. Close to critical stresses, corresponding to creation of kink-antikink pairs, gliding non-tilted dislocation exhibits resonant roughening. At finite tilts gliding dislocation remains quantum rough which leads to effective softening of dislocation tension and, consequently, to softening of shear modulus at low temperatures(T). This effect is interpreted as (quasi) Bose-Einstein condensation of extra kinks introduced by tilting. For superclimbing dislocation, atT where the core superfluidity still persists and Peierls barrier becomes irrelevant giant values of the compressibility as well as non-Luttinger type behavior of the core superfluid are observed. Crossover to standard Luttinger liquid occurs at lowT where Peierls potential becomes relevant. Tilted superclimb is discussed as well. Springer Science+Business Media, LLC, 2010 Supersolid nationallicence Quantum dislocations nationallicence Roughening nationallicence Glide nationallicence Superclimb nationallicence Aleinikava D. Department of Physics and Engineering, College of Staten Island, CUNY, 10314, Staten Island, NY, USA aut Dedits E. Department of Physics and Engineering, College of Staten Island, CUNY, 10314, Staten Island, NY, USA aut Kuklov A. Department of Physics and Engineering, College of Staten Island, CUNY, 10314, Staten Island, NY, USA aut Journal of Low Temperature Physics Springer US; http://www.springer-ny.com 162/5-6(2011-03-01), 464-475 0022-2291 162:5-6<464 2011 162 10909 https://doi.org/10.1007/s10909-010-0288-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10909-010-0288-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Aleinikava D. Department of Physics and Engineering, College of Staten Island, CUNY, 10314, Staten Island, NY, USA aut NATIONALLICENCE 700 1- Dedits E. Department of Physics and Engineering, College of Staten Island, CUNY, 10314, Staten Island, NY, USA aut NATIONALLICENCE 700 1- Kuklov A. Department of Physics and Engineering, College of Staten Island, CUNY, 10314, Staten Island, NY, USA aut NATIONALLICENCE 773 0- Journal of Low Temperature Physics Springer US; http://www.springer-ny.com 162/5-6(2011-03-01), 464-475 0022-2291 162:5-6<464 2011 162 10909 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer