%0 Book Section %1 statphys23_0745 %A Schehr, G. %A Rieger, H. %B Abstract Book of the XXIII IUPAP International Conference on Statistical Physics %C Genova, Italy %D 2007 %E Pietronero, Luciano %E Loreto, Vittorio %E Zapperi, Stefano %K chains disordered dissipation griffith quantum real renormalization singularities space spin statphys23 topic-8 %T Strong-Disorder Fixed Point in the Dissipative Random Transverse-Field Ising Model %U http://st23.statphys23.org/webservices/abstract/preview_pop.php?ID_PAPER=745 %X The interplay between disorder, quantum fluctuations, and dissipation is studied in the random transverse Ising chain coupled to a dissipative Ohmic bath with a real space renormalization group. A typically very large length scale $L^*$ is identified above which the physics of frozen clusters dominates. Below $L^*$ a strong-disorder fixed point determines scaling at a pseudocritical point. In a Griffiths-McCoy region frozen clusters produce already a finite magnetization resulting in a classical low temperature behavior of the susceptibility and specific heat. These override the confluent singularities that are characterized by a continuously varying exponent $z$ and are visible above a temperature $T^*L^*^-z$.

@incollection{statphys23_0745, abstract = {The interplay between disorder, quantum fluctuations, and dissipation is studied in the random transverse Ising chain coupled to a dissipative Ohmic bath with a real space renormalization group. A typically very large length scale $L^*$ is identified above which the physics of frozen clusters dominates. Below $L^*$ a strong-disorder fixed point determines scaling at a pseudocritical point. In a Griffiths-McCoy region frozen clusters produce already a finite magnetization resulting in a classical low temperature behavior of the susceptibility and specific heat. These override the confluent singularities that are characterized by a continuously varying exponent $z$ and are visible above a temperature $T^*\sim {L^*}^{-z}$.}, added-at = {2007-06-20T10:16:09.000+0200}, address = {Genova, Italy}, author = {Schehr, G. and Rieger, H.}, biburl = {https://www.bibsonomy.org/bibtex/2d31d9bc16be32672e5ec678ec73ebab4/statphys23}, booktitle = {Abstract Book of the XXIII IUPAP International Conference on Statistical Physics}, editor = {Pietronero, Luciano and Loreto, Vittorio and Zapperi, Stefano}, interhash = {8f99bc9e665ec2745f3fb7f5fa9fde1e}, intrahash = {d31d9bc16be32672e5ec678ec73ebab4}, keywords = {chains disordered dissipation griffith quantum real renormalization singularities space spin statphys23 topic-8}, month = {9-13 July}, timestamp = {2007-06-20T10:16:28.000+0200}, title = {Strong-Disorder Fixed Point in the Dissipative Random Transverse-Field Ising Model}, url = {http://st23.statphys23.org/webservices/abstract/preview_pop.php?ID_PAPER=745}, year = 2007 }