Quantum phase transition in dimerised spin-1/2 chains

被引：0
|
作者：
Das, Aparajita [1 ]
Bhadra, Sreeparna [1 ]
Saha, Sonali [2 ]
机构：
[1] Acharya Prafulla Chandra Coll, New Barrackpore, India
[2] Sarojini Naidu Coll Women, Kolkata, India
来源：
QUANTUM INFORMATION PROCESSING | 2015年 / 14卷 / 11期
关键词：
Quantum phase transition; Concurrence; Dimerised Heisenberg chain; GROUND-STATE SYSTEM; MAGNETIC-PROPERTIES; ENTANGLEMENT; DYNAMICS; CU(NO3)2.21/2H2O; INFORMATION; CRITICALITY; MODEL; SPINS;
D O I：
10.1007/s11128-015-1116-8
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Quantum phase transition in dimerised antiferromagnetic Heisenberg spin chain has been studied. A staircase structure in the variation of concurrence within strongly coupled pairs with that of external magnetic field has been observed indicating multiple critical (or critical like) points. Emergence of entanglement due to external magnetic field or magnetic entanglement is observed for weakly coupled spin pairs too in the same dimer chain. Though closed dimerised isotropic XXX Heisenberg chains with different dimer strengths were mainly explored, analogous studies on open chains as well as closed anisotropic (XX interaction) chains with tilted external magnetic field have also been studied.
引用
收藏
页码：4089 / 4102
页数：14
相关论文
共 50 条
  • [1] Quantum phase transition in dimerised spin-1/2 chains
    Aparajita Das
    Sreeparna Bhadra
    Sonali Saha
    Quantum Information Processing, 2015, 14 : 4089 - 4102
  • [2] Quantum criticality in dimerised anisotropic spin-1 chains
    Ejima, Satoshi
    Lange, Florian
    Fehske, Holger
    EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS, 2021, 230 (04): : 1009 - 1012
  • [3] Quantum criticality in dimerised anisotropic spin-1 chains
    Satoshi Ejima
    Florian Lange
    Holger Fehske
    The European Physical Journal Special Topics, 2021, 230 : 1009 - 1012
  • [4] Quantum Correlations in Infinite XY Spin-1/2 Chains and Quantum Phase Transition
    谭小东
    黄寿胜
    金柏琪
    Communications in Theoretical Physics, 2013, 59 (02) : 146 - 156
  • [5] Quantum Correlations in Infinite XY Spin-1/2 Chains and Quantum Phase Transition
    Tan Xiao-Dong
    Huang Shou-Sheng
    Jin Bai-Qi
    COMMUNICATIONS IN THEORETICAL PHYSICS, 2013, 59 (02) : 146 - 156
  • [6] Negativity, entanglement witness and quantum phase transition in spin-1 Heisenberg chains
    Wang, Xiaoguang
    Gu, Shi-Jian
    JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, 2007, 40 (35) : 10759 - 10767
  • [7] Topological quantum phase transition in bond-alternating spin-1/2 Heisenberg chains
    Wang, Hai Tao
    Li, Bo
    Cho, Sam Young
    PHYSICAL REVIEW B, 2013, 87 (05)
  • [8] Disorder induced quantum phase transition in random-exchange spin-1/2 chains
    Hamacher, K
    Stolze, J
    Wenzel, W
    PHYSICAL REVIEW LETTERS, 2002, 89 (12) : 1272021 - 1272024
  • [9] Multipolar phase in frustrated spin-1/2 and spin-1 chains
    Parvej, Aslam
    Kumar, Manoranjan
    PHYSICAL REVIEW B, 2017, 96 (05)
  • [10] Quantum phase transitions in spin-1 compass chains
    Liu, Guang-Hua
    Kong, Long-Juan
    You, Wen-Long
    EUROPEAN PHYSICAL JOURNAL B, 2015, 88 (11): : 1 - 6
12345