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66 results on '"Jaan Oitmaa"'

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1. Magnetic phases of a spin- 12 Heisenberg antiferromagnet on a frustrated bilayer

2. Magnetic phases in the J1−J2 Heisenberg antiferromagnet on the triangular lattice

3. Frustrated diamond lattice antiferromagnet

4. Properties of the spin-liquid phase in the vicinity of the Lifshitz transition from Néel to spin-spiral state in frustrated magnets

5. Quantum Spin Ice with Frustrated Transverse Exchange: From a π-Flux Phase to a Nematic Quantum Spin Liquid

6. Incipient and well-developed entropy plateaus in spin-S Kitaev models

7. Competing orders in spin-1 andspin−32XXZ kagome antiferromagnets: A series expansion study

8. Diamond lattice Heisenberg antiferromagnet

9. Phase diagram of the Heisenberg-Kitaev model atT=0

10. Magnons and excitation continuum in XXZ triangular antiferromagnetic model: Application toBa3CoSb2O9

11. Computer programs

12. Series-expansion studies of thet−Jtwo-leg ladder

13. Series expansions for a Heisenberg antiferromagnetic model forSrCu2(BO3)2

14. Dimer order with striped correlations in theJ1−J2Heisenberg model

15. Excitation spectrum and ground-state properties of theS=12Heisenberg ladder with staggered dimerization

16. One- and two-hole states in the two-dimensionalt−Jmodel via series expansions

17. Two-chain spin ladder with frustrating second-neighbor interactions

18. Series expansions for three-dimensional QED

19. Some graph theory ideas

20. Field dependence of the magnetization for the spin-ladder materialCu2(C5H12N2)2Cl4

21. Phase transition and thermal order-by-disorder in the pyrochlore antiferromagnet Er2Ti2O7: A high-temperature series expansion study

22. Exact solution and high-temperature series expansion study of the one-fifth-depleted square-lattice Ising model

23. S=1bilinear biquadratic spin model on the square lattice: A series expansion study

24. Disorder Line and Incommensurate Floating Phases in the Quantum Ising Model on an Anisotropic Triangular Lattice

25. Convergent Expansions for Properties of the Heisenberg Model forCaV4O9

26. Series expansion for theJ1-J2Heisenberg antiferromagnet on a square lattice

27. Quantum spin ladders atT=0 and at high temperatures studied by series expansions

28. Comparison between linked-cluster expansion methods for the U(1) lattice gauge model in 2+1 dimensions

29. High-temperature series expansion study of the Heisenberg antiferromagnet on the hyperkagome lattice: Comparison with Na4Ir3O8

30. Restoration of symmetry in the spectrum of the bilayer Heisenberg antiferromagnet

31. Series expansions for the 3D transverse Ising model at T=0

32. Phase diagram of theJ1−J2−J3Heisenberg model on the honeycomb lattice: A series expansion study

33. Corrections to Pauling residual entropy and single tetrahedron based approximations for the pyrochlore lattice Ising antiferromagnet

34. Large-Uexpansions for the Hubbard model atT=0. II

35. Two-parameter expansions for quantum spin systems

36. Quantum phase diagram and excitations for the one-dimensionalS=1Heisenberg antiferromagnet with single-ion anisotropy

37. Low-temperature series expansions for the (2+1)-dimensional Ising model

38. Square-lattice Heisenberg antiferromagnet atT=0

39. Discerning incompressible and compressible phases of cold atoms in optical lattices

40. Studies of lattice spin systems using series expansions

41. Application of linked-cluster expansions to quantum hamiltonian lattice systems

42. One-particle dispersion and spectral weights in the transverse Ising model

43. Hard-core bosons on the triangular lattice at zero temperature: A series expansion study

44. Quantum spin models at T = 0

45. Additional topics

46. Series expansions for lattice gauge models

47. Introduction

49. Critical Behaviour of One-particle Spectral Weights in the Transverse Ising Model

50. Thermodynamics of a spin-12chain coupled to Einstein phonons

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