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題名 Finite-size scaling of pseudocritical point distributions in the random transverse-field Ising chain
作者 林瑜琤
Lin, Yu-Cheng
貢獻者 應物所
日期 2007.08
上傳時間 6-五月-2014 11:31:22 (UTC+8)
摘要 We study the distribution of finite-size pseudocritical points in a one-dimensional random quantum magnet with a quantum phase transition described by an infinite randomness fixed point. Pseudocritical points are defined in three different ways: the position of the maximum of the average entanglement entropy, the scaling behavior of the surface magnetization, and the energy of a soft mode. All three lead to a log-normal distribution of the pseudocritical transverse fields, where the width scales as L−1/ν with ν=2 and the shift of the average value scales as L−1/νtyp with νtyp=1, which we related to the scaling of average and typical quantities in the critical region.
關聯 Physical Review B, 76(6), 064421(1-5)
資料類型 article
DOI http://dx.doi.org/10.1103/PhysRevB.76.064421
dc.contributor 應物所en_US
dc.creator (作者) 林瑜琤zh_TW
dc.creator (作者) Lin, Yu-Chengen_US
dc.date (日期) 2007.08en_US
dc.date.accessioned 6-五月-2014 11:31:22 (UTC+8)-
dc.date.available 6-五月-2014 11:31:22 (UTC+8)-
dc.date.issued (上傳時間) 6-五月-2014 11:31:22 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/65819-
dc.description.abstract (摘要) We study the distribution of finite-size pseudocritical points in a one-dimensional random quantum magnet with a quantum phase transition described by an infinite randomness fixed point. Pseudocritical points are defined in three different ways: the position of the maximum of the average entanglement entropy, the scaling behavior of the surface magnetization, and the energy of a soft mode. All three lead to a log-normal distribution of the pseudocritical transverse fields, where the width scales as L−1/ν with ν=2 and the shift of the average value scales as L−1/νtyp with νtyp=1, which we related to the scaling of average and typical quantities in the critical region.en_US
dc.format.extent 119327 bytes-
dc.format.mimetype application/pdf-
dc.language.iso en_US-
dc.relation (關聯) Physical Review B, 76(6), 064421(1-5)en_US
dc.title (題名) Finite-size scaling of pseudocritical point distributions in the random transverse-field Ising chainen_US
dc.type (資料類型) articleen
dc.identifier.doi (DOI) 10.1103/PhysRevB.76.064421en_US
dc.doi.uri (DOI) http://dx.doi.org/10.1103/PhysRevB.76.064421 en_US