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19972025
most citedPlanck 2018 results. X. Constraints on inflation

2.4k citations

Showing 2011Show all

5 papers · 1 filter

cond-mat.mes-hall2011★ 496 cited

Edge states and topological phases in non-Hermitian systems

Kenta Esaki, Masatoshi Sato, Kazuki Hasebe +1

Topological stability of the edge states is investigated for non-Hermitian systems. We examine two classes of non-Hermitian Hamiltonians supporting real bulk eigenenergies in weak…

cond-mat.stat-mech2011★ 82 cited

Time-Reversal Symmetry in Non-Hermitian Systems

Masatoshi Sato, Kazuki Hasebe, Kenta Esaki +1

For ordinary hermitian Hamiltonians, the states show the Kramers degeneracy when the system has a half-odd-integer spin and the time reversal operator obeys Θ^2=-1, but no such a d…

hep-th2011★ 16 cited

Graded Hopf Maps and Fuzzy Superspheres

Kazuki Hasebe

We argue supersymmetric generalizations of fuzzy two- and four-spheres based on the unitary-orthosymplectic algebras, and , respectively. Supersymmetric vers…

cond-mat.str-el2011★ 12 cited

Hidden Order and Dynamics in Supersymmetric Valence Bond Solid States -- Super-Matrix Product State Formalism

Kazuki Hasebe, Keisuke Totsuka

Supersymmetric valence bond solid models are extensions of the VBS model, a paradigmatic model of `solvable' gapped quantum antiferromagnets, to the case with doped fermionic holes…

astro-ph.SR2011★ 43 cited

Region of hadron-quark mixed phase in hybrid stars

Tomoki Endo

Hadron--quark mixed phase is expected in a wide region of the inner structure of hybrid stars. However, we show that the hadron--quark mixed phase should be restricted to a narrowe…