Ground state of asymmetric tops with DMRG: water in one dimension

Author(s):  
Tobias Serwatka ◽  
Pierre-Nicholas Roy
1993 ◽  
Vol 186-188 ◽  
pp. 882-884 ◽  
Author(s):  
Hirokazu Tsunetsugu ◽  
Yasuhiro Hatsugai ◽  
Kazuo Ueda ◽  
Manfred Sigrist

2014 ◽  
Vol 25 (08) ◽  
pp. 1450028 ◽  
Author(s):  
L. A. Pastur ◽  
V. V. Slavin ◽  
A. A. Krivchikov

The ground state (GS) of interacting particles on a disordered one-dimensional (1D) host-lattice is studied by a new numerical method. It is shown that if the concentration of particles is small, then even a weak disorder of the host-lattice breaks the long-range order of Generalized Wigner Crystal (GWC), replacing it by the sequence of blocks (domains) of particles with random lengths. The mean domains length as a function of the host-lattice disorder parameter is also found. It is shown that the domain structure can be detected by a weak random field, whose form is similar to that of the ground state but has fluctuating domain walls positions. This is because the generalized magnetization corresponding to the field has a sufficiently sharp peak as a function of the amplitude of fluctuations for small amplitudes.


1998 ◽  
Vol 12 (22) ◽  
pp. 2225-2232 ◽  
Author(s):  
Xiyu Su ◽  
Hang Zheng

An electron related squeezed phonon transformation is employed to investigate the ground state properties of the strongly coupled electron–phonon system in one dimension. It has been shown that the binding energy of the polaron and the interaction between the polarons are renormalized together with the energy reducement of the electron subsystem resulted from the squeeze state of the phonon subsystem. Some relevance with the earlier variational treatments has been discussed as well.


1991 ◽  
Vol 66 (19) ◽  
pp. 2417-2420 ◽  
Author(s):  
Thomas Blum ◽  
Daniel S. Koltun ◽  
Yonathan Shapir

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