Zobrazeno 1 - 10
of 214
pro vyhledávání: '"Noculak, A."'
Autor:
Noculak, Vincent, Reuther, Johannes
The pseudo-fermion functional renormalization group is generalized to treat spin Hamiltonians with finite magnetic fields, enabling its application to arbitrary spin lattice models with linear and bilinear terms in the spin operators. We discuss in d
Externí odkaz:
http://arxiv.org/abs/2312.12097
Autor:
Lozano-Gómez, Daniel, Noculak, Vincent, Oitmaa, Jaan, Singh, Rajiv R. P., Iqbal, Yasir, Reuther, Johannes, Gingras, Michel J. P.
Publikováno v:
Proc. Natl. Acad. Sci. U.S.A. 121, e2403487121 (2024)
Gauge theories are powerful tools in theoretical physics, allowing complex phenomena to be reduced to simple principles, and are used in both high-energy and condensed matter physics. In the latter context, gauge theories are becoming increasingly po
Externí odkaz:
http://arxiv.org/abs/2310.16682
Autor:
Gonzalez, M. G., Noculak, V., Sharma, A., Favre, V., Soh, J-R., Magrez, A., Bewley, R., Jeschke, H. O., Reuther, J., Rønnow, H. M., Iqbal, Y., Živković, I.
Publikováno v:
Nat. Commun. 15, 7191 (2024)
Quantum spin liquids (QSLs) have become a key area of research in magnetism due to their remarkable properties, such as long-range entanglement, fractional excitations, pinch-point singularities, and topologically protected phenomena. In recent years
Externí odkaz:
http://arxiv.org/abs/2308.11746
Autor:
Matías G. Gonzalez, Vincent Noculak, Aman Sharma, Virgile Favre, Jian-Rui Soh, Arnaud Magrez, Robert Bewley, Harald O. Jeschke, Johannes Reuther, Henrik M. Rønnow, Yasir Iqbal, Ivica Živković
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-9 (2024)
Abstract Quantum spin liquids (QSLs) have become a key area of research in magnetism due to their remarkable properties, such as long-range entanglement, fractional excitations, and topologically protected phenomena. Recently, the search for QSLs has
Externí odkaz:
https://doaj.org/article/0eaff1967e054f40964099801cc55144
Autor:
Noculak, Vincent, Lozano-Gómez, Daniel, Oitmaa, Jaan, Singh, Rajiv R. P., Iqbal, Yasir, Gingras, Michel J. P., Reuther, Johannes
Publikováno v:
Phys. Rev. B 107, 214414 (2023)
We investigate the ground state and critical temperature phase diagrams of the classical and quantum $S=1/2$ pyrochlore lattice with nearest-neighbor Heisenberg and Dzyaloshinskii-Moriya interactions (DMI). We consider ferromagnetic and antiferromagn
Externí odkaz:
http://arxiv.org/abs/2211.08823
Publikováno v:
Phys. Rev. B 106, 235137 (2022)
We investigate the ground-state properties of the nearest-neighbor $S=1$ pyrochlore Heisenberg antiferromagnet using two complementary numerical methods, density-matrix renormalization group (DMRG) and pseudofermion functional renormalization group (
Externí odkaz:
http://arxiv.org/abs/2207.01642
Publikováno v:
Phys. Rev. B 105, 054426 (2022)
We investigate the ground state properties of the spin-$1/2$ pyrochlore Heisenberg antiferromagnet using pseudofermion functional renormalization group techniques. The first part of our analysis is based on an enhanced parton mean-field approach whic
Externí odkaz:
http://arxiv.org/abs/2110.08160
Autor:
Zivkovic, Ivica, Favre, Virgile, Mejia, Catalina Salazar, Jeschke, Harald O., Magrez, Arnaud, Dabholkar, Bhupen, Noculak, Vincent, Freitas, Rafael S., Jeong, Minki, Hegde, Nagabhushan G., Testa, Luc, Babkevich, Peter, Su, Yixi, Manuel, Pascal, Luetkens, Hubertus, Baines, Christopher, Baker, Peter J., Wosnitza, Jochen, Zaharko, Oksana, Iqbal, Yasir, Reuther, Johannes, Rønnow, Henrik M.
Publikováno v:
Phys. Rev. Lett. 127, 157204 (2021)
Quantum spin liquids are exotic states of matter which form when strongly frustrated magnetic interactions induce a highly entangled quantum paramagnet far below the energy scale of the magnetic interactions. Three-dimensional cases are especially ch
Externí odkaz:
http://arxiv.org/abs/2109.04102
Publikováno v:
Phys. Rev. B 100, 125164 (2019)
In the field of quantum magnetism, the advent of numerous spin-orbit assisted Mott insulating compounds, such as the family of Kitaev materials, has led to a growing interest in studying general spin models with non-diagonal interactions that do not
Externí odkaz:
http://arxiv.org/abs/1905.04190
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