Zobrazeno 1 - 10
of 2 215
pro vyhledávání: '"P. Laurell"'
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-7 (2022)
It has long been suggested that the inverse Fourier transform of neutron scattering data gives access to space- and time-resolved spin-spin correlations. Scheie et al. perform this procedure on high-precision experimental data from a 1D quantum antif
Externí odkaz:
https://doaj.org/article/2bcf7f2ad2c84d0c9aea7db4c9c511d2
Autor:
Laurell, Pontus, Pandey, Bradraj, Halász, Gábor B., Okamoto, Satoshi, Alvarez, Gonzalo, Dagotto, Elbio
We study the impact of hole-doping on the Kitaev-Heisenberg model on the honeycomb lattice. We investigate the pairing tendencies and correlation functions in the framework of a $t-J-K$ model using density matrix renormalization group calculations on
Externí odkaz:
http://arxiv.org/abs/2409.04389
Autor:
Luo, Sizuo, Weissenbilder, Robin, Laurell, Hugo, Bello, Roger Y., Marante, Carlos, Ammitzböll, Mattias, Neoričić, Lana, Ljungdahl, Anton, Squibb, Richard J., Feifel, Raimund, Gisselbrecht, Mathieu, Arnold, Cord L., Martín, Fernando, Lindroth, Eva, Argenti, Luca, Busto, David, L'Huillier, Anne
Fano resonances are ubiquitous phenomena appearing in many fields of physics, e.g. atomic or molecular photoionization, or electron transport in quantum dots. Recently, attosecond interferometric techniques have been used to measure the amplitude and
Externí odkaz:
http://arxiv.org/abs/2406.17539
Autor:
Scheie, A. O., Lee, Minseong, Wang, Kevin, Laurell, P., Choi, E. S., Pajerowski, D., Zhang, Qingming, Ma, Jie, Zhou, H. D., Lee, Sangyun, Thomas, S. M., Ajeesh, M. O., Rosa, P. F. S., Chen, Ao, Zapf, Vivien S., Heyl, M., Batista, C. D., Dagotto, E., Moore, J. E., Tennant, D. Alan
We report neutron scattering, pressure-dependent AC calorimetry, and AC magnetic susceptibility measurements of triangular lattice NaYbSe$_2$. We observe a continuum of scattering, which is reproduced by matrix product simulations, and no phase trans
Externí odkaz:
http://arxiv.org/abs/2406.17773
Autor:
Vågberg, Adrian, Brunzell, Martin, Widarsson, Max, Mutter, Patrick, Zukauskas, Andrius, Laurell, Fredrik, Pasiskevicius, Valdas
In this study, we demonstrated the direct use of an inherently narrowband backward wave in the mid-infrared for CO$_2$ and H$_2$O vapor spectroscopy in ambient air. This wave is generated in a backward wave optical parametric oscillator (BWOPO) pumpe
Externí odkaz:
http://arxiv.org/abs/2405.11661
The detection and certification of entanglement and quantum correlations in materials is of fundamental and far-reaching importance, and has seen significant recent progress. It impacts both our understanding of the basic science of quantum many-body
Externí odkaz:
http://arxiv.org/abs/2405.10899
Autor:
Laurell, Hugo, Baños-Gutiérrez, Jorge, L'Huillier, Anne, Busto, David, Finkelstein-Shapiro, Daniel
There is a growing interest in reconstructing the density matrix of photoelectron wavepackets, in particular in complex systems where decoherence can be introduced either by a partial measurement of the system or through coupling with a stochastic en
Externí odkaz:
http://arxiv.org/abs/2405.00968
A backward wave optical parametric oscillator (BWOPO) waveguide in periodically poled Rb-doped KTP is presented. The waveguide exhibits low loss (0.16 dB/cm) and has an oscillation threshold, almost 20 times lower than the corresponding bulk device.
Externí odkaz:
http://arxiv.org/abs/2401.12063
Publikováno v:
Phys. Rev. B 110, 064515 (2024)
We investigate the pairing tendencies in the hole-doped Haldane spin-1 chain. To allow for doping, we extend the original spin chain Hamiltonian into a fermionic model involving a two-orbital Hubbard chain at intermediate or strong repulsive interact
Externí odkaz:
http://arxiv.org/abs/2311.13440
Autor:
Laurell, Hugo, Luo, Sizuo, Weissenbilder, Robin, Ammitzböll, Mattias, Ahmed, Shahnawaz, Söderberg, Hugo, Petersson, C. Leon M., Poulain, Vénus, Guo, Chen, Dittel, Christoph, Finkelstein-Shapiro, Daniel, Squibb, Richard J., Feifel, Raimund, Gisselbrecht, Mathieu, Arnold, Cord L., Buchleitner, Andreas, Lindroth, Eva, Kockum, Anton Frisk, L'Huillier, Anne, Busto, David
A photoelectron, emitted due to the absorption of light quanta as described by the photoelectric effect, is often characterized experimentally by a classical quantity, its momentum. However, since the photoelectron is a quantum object, its rigorous c
Externí odkaz:
http://arxiv.org/abs/2309.13945