M. Nayak

activity

20192025

most citedField-induced bound-state condensation and spin-nematic phase in SrCu

_{2}

(BO

_{3}

)

_{2}

revealed by neutron scattering up to 25.9 T

18 citations · 43 across the 7 of their papers we have counts for

collaborators

7 papers

cond-mat.str-el2025

Confinement, deconfinement, and bound states in the spin- $1$ and spin- $3/2$ generalizations of the Majumdar--Ghosh chain

Aman Sharma, Mithilesh Nayak, Natalia Chepiga +2

We investigate the nature of low-energy excitations in a spin chain with antiferrmomagnetic nearest-neighbor $J_{1}$ , next-nearest-neighbor $J_{2}$ , and three-site $J_{3}$ interactions u…

cond-mat.str-el2025★ 1 cited

Excitations and dynamical structure factor of $J_{1} - J_{2}$ spin- $3/2$ and spin- $5/2$ Heisenberg spin chains

Aman Sharma, Mithilesh Nayak, Natalia Chepiga +1

We study the dynamical structure factor of the frustrated spin- $3/2$ $J_{1}$ - $J_{2}$ Heisenberg chains, with particular focus on the partially dimerized phase that emerges between two…

cond-mat.str-el2025★ 8 cited

Steady-state dynamical mean field theory based on influence functional matrix product states

Mithilesh Nayak, Julian Thoenniss, Michael Sonner +2

We implement the recently developed influence functional matrix product states approach as impurity solver in equilibrium and nonequilibrium dynamical mean field theory (DMFT) calc…

cond-mat.str-el2025★ 6 cited

Bound states and deconfined spinons in the dynamical structure factor of the $J_{1} - J_{2}$ spin-1 chain

Aman Sharma, Mithilesh Nayak, Henrik M. Rønnow +1

Using a time-dependent density matrix renormalization group approach, we study the dynamical structure factor of the $J_{1} - J_{2}$ spin-1 chain. As $J_{2}$ increases, the magnon mode d…

cond-mat.str-el2023★ 18 cited

Field-induced bound-state condensation and spin-nematic phase in SrCu $_{2}$ (BO $_{3}$ ) $_{2}$ revealed by neutron scattering up to 25.9 T

Ellen Fogh, Mithilesh Nayak, Oleksandr Prokhnenko +12

Bose-Einstein condensation (BEC) underpins exotic forms of order ranging from superconductivity to superfluid 4 He. In quantum magnetic materials, ordered phases induced by an appl…

cond-mat.str-el2021

Possibility to detect the bound state of the Heisenberg ferromagnetic chain at intermediate temperature

Mithilesh Nayak, Frédéric Mila

Motivated by the lack of direct evidence with inelastic neutron scattering of the well documented bound state of Heisenberg ferromagnets, we use the time-dependent Thermal Density…

cond-mat.str-el2019★ 10 cited

Magnetic field induced bound states in spin- $\frac{1}{2}$ ladders

Mithilesh Nayak, Dominic Blosser, Andrey Zheludev +1

Motivated by the intriguing mode splittings in a magnetic field recently observed with inelastic neutron scattering in the spin ladder compound (C $_{5}$ H $_{12}$ N) $_{2}$ CuBr $_{4}$ (BPCB),…

Confinement, deconfinement, and bound states in the spin-1 and spin-3/2 generalizations of the Majumdar--Ghosh chain

Excitations and dynamical structure factor of J1​−J2​ spin-3/2 and spin-5/2 Heisenberg spin chains