Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Chandra, V. Ravi"'
Publikováno v:
Phys. Rev. B 109, 214209 (2024)
Understanding the nature of the transition from the delocalized to the many-body localized (MBL) phase is an important unresolved issue. To probe the nature of the MBL transition, we investigate the universal properties of single-particle excitations
Externí odkaz:
http://arxiv.org/abs/2212.08480
Publikováno v:
J. Phys.: Condens. Matter 36, 185801 (2024)
The pyrochlore lattice is a versatile venue to probe the properties of magnetically ordered states induced or perturbed by anisotropic terms like the Dzyaloshinskii-Moriya interactions or single-ion anisotropy. Several such ordered states have been i
Externí odkaz:
http://arxiv.org/abs/2210.03548
Publikováno v:
Phys. Rev. B 104, L140201 (2021)
Characterizing the many-body localization (MBL) transition in strongly disordered and interacting quantum systems is an important issue in the field of condensed matter physics. We study the single particle Green's functions for a disordered interact
Externí odkaz:
http://arxiv.org/abs/2105.13249
Akademický článek
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Akademický článek
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Autor:
Chandra, V. Ravi, Sahoo, Jyotisman
Publikováno v:
Phys. Rev. B 97, 144407 (2018)
We present exact diagonalisation calculations for the spin-1/2 nearest neighbour antiferromagnet on the pyrochlore lattice. We study a section of the lattice in the $[111]$ direction and analyse the Hamiltonian of the breathing pyrochlore system with
Externí odkaz:
http://arxiv.org/abs/1710.11316
Publikováno v:
Phys. Rev. B 91, 184407 (2015)
Motivated by recent developments in magnetic materials, frustrated nanoarrays and cold atomic systems, we investigate the behaviour of dipolar spins on the frustrated two-dimensional kagome lattice. By combining the Luttinger-Tisza approach, numerica
Externí odkaz:
http://arxiv.org/abs/1502.05960
Autor:
Ofer, Oren, Marcipar, Lital, Chandra, V. Ravi, Gazit, Snir, Podolsky, Daniel, Arovas, Daniel P., Keren, Amit
We report magnetization, electron spin resonance (ESR), and muon spin relaxation ($\mu $SR) measurements on single crystals of the $S=1/2$ (Cu$% ^{+2}$) kagom\'{e} compound Cu(1,3-benzendicarboxylate). The $\mu $SR is carried to temperatures as low a
Externí odkaz:
http://arxiv.org/abs/1311.7411
Publikováno v:
Phys. Rev. B 87, 161118(R), (2013)
The Kagome Heisenberg antiferromagnet is mapped onto an effective Hamiltonian on the star superlattice by Contractor Renormalization. Comparison of ground state energies on large lattices to Density Matrix Renormalization Group justifies truncation o
Externí odkaz:
http://arxiv.org/abs/1210.5519
Publikováno v:
Phys. Rev. A 87, 012302 (2013)
The transition from a gapless liquid to a gapped dimerized ground state that occurs in the frustrated antiferromagnetic Majumdar-Ghosh (or $J_1-J_2$ Heisenberg) model is revisited from the point of view of entanglement. We study the evolution of enta
Externí odkaz:
http://arxiv.org/abs/1210.4384