Zobrazeno 1 - 10
of 10 091
pro vyhledávání: '"Richter J. ."'
Publikováno v:
Z. Naturforsch. A 79 (2024) 283
Materials that are susceptible to pressure and external magnetic fields allow the combined use of both for caloric processes. Here we report investigations of the ferromagnetic-antiferromagnetic sawtooth chain that due to its critical behavior not on
Externí odkaz:
http://arxiv.org/abs/2310.01887
Publikováno v:
Phys. Rev. B 106, 094431 (2022)
We study the nearest-neighbor Heisenberg antiferromagnet on a face-centered cubic lattice with arbitrary spin S. The model exhibits degenerate classical ground states including two collinear structures AF1 and AF3 described by different propagation v
Externí odkaz:
http://arxiv.org/abs/2206.12102
Publikováno v:
J. Phys. Soc. Jpn. 91, 094711 (2022)
Unconventional features of the magnetization curve at zero temperature such as plateaus or jumps are a hallmark of frustrated spin systems. Very little is known about their behavior at non-zero temperatures. Here we investigate the temperature depend
Externí odkaz:
http://arxiv.org/abs/2206.08710
Publikováno v:
Phys. Rev. B 105 (2022) 064420
It is evidenced that effective lattice-gas models of hard-core monomers and dimers afford a proper description of low-temperature features of spin-1/2 Heisenberg diamond and octahedral chains. Besides monomeric particles assigned within the localized
Externí odkaz:
http://arxiv.org/abs/2110.07958
Autor:
Boukovala, M., Modest, D.P., Ricard, I., Fischer von Weikersthal, L., Decker, T., Vehling-Kaiser, U., Uhlig, J., Schenk, M., Freiberg-Richter, J., Peuser, B., Denzlinger, C., Peveling Genannt Reddemann, C., Graeven, U., Schuch, G., Schwaner, I., Heinrich, K., Neumann, J., Jung, A., Held, S., Stintzing, S., Heinemann, V., Michl, M.
Publikováno v:
In ESMO Open May 2024 9(5)
Autor:
Richter, J. (AUTHOR), Větvička, V. (AUTHOR)
Publikováno v:
General Practitioner / Praktický Lékař. 2024, Vol. 104 Issue 2, p73-77. 5p.
Publikováno v:
Cancer Management and Research, Vol Volume 15, Pp 741-751 (2023)
Darren Pan, Joshua Richter Division of Hematology and Medical Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USACorrespondence: Darren Pan, One Gustave L. Levy Place, Box 1079, New York, NY, 10029-6574
Externí odkaz:
https://doaj.org/article/426677e3b8bd494ebe1400a1b5d88d2c
Publikováno v:
Condens. Matter Phys., 2020, vol. 23, No. 4, 43710
In contrast to strongly frustrated classical systems, their quantum counterparts typically have a non-degenerate ground state. A counterexample is the celebrated Heisenberg sawtooth spin chain with ferromagnetic zigzag bonds $J_1$ and competing antif
Externí odkaz:
http://arxiv.org/abs/2009.05809
Publikováno v:
Z. Naturforsch. A 75, 465 (2020)
According to the concept of typicality, an ensemble average can be accurately approximated by an expectation value with respect to a single pure state drawn at random from a high-dimensional Hilbert space. This random-vector approximation, or trace e
Externí odkaz:
http://arxiv.org/abs/2002.00411
Publikováno v:
Phys. Rev. Research 2, 013186 (2020)
We study trace estimators for equilibrium thermodynamic observables that rely on the idea of typicality and derivatives thereof such as the finite-temperature Lanczos method (FTLM). As numerical examples quantum spin systems are studied. Our initial
Externí odkaz:
http://arxiv.org/abs/1911.08838