Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Vanja Dunjko"'
Publikováno v:
Physics, Vol 4, Iss 1, Pp 12-20 (2022)
In this paper, the quantum fluctuations of the relative velocity of constituent solitons in a Gross-Pitaevskii breather are studied. The breather is confined in a weak harmonic trap. These fluctuations are monitored, indirectly, using a two-body corr
Externí odkaz:
https://doaj.org/article/c810a35aa0454714ad061f430812406a
Publikováno v:
SciPost Physics, Vol 15, Iss 5, p 187 (2023)
We discuss an interferometric scheme employing interference of bright solitons formed as specific bound states of attracting bosons on a lattice. We revisit the proposal of Castin and Weiss [Phys. Rev. Lett. vol. 102, 010403 (2009)] for using the sca
Externí odkaz:
https://doaj.org/article/4faabac12a304e38a22584948ab11b8d
Autor:
Piero Naldesi, Juan Polo, Vanja Dunjko, Hélène Perrin, Maxim Olshanii, Luigi Amico, Anna Minguzzi
Publikováno v:
SciPost Physics. 12
Quantum mechanics is characterized by quantum coherence and entanglement. After having discovered how these fundamental concepts govern physical reality, scientists have been devoting intense efforts to harness them to shape future science and techno
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f240cb61cf4de9e19735092357ee7bc3
https://doi.org/10.21468/scipostphys.12.4.138
https://doi.org/10.21468/scipostphys.12.4.138
Autor:
D. Deshommes, Maxim Olshanii, Grigori E. Astrakharchik, Jordi Torrents, Vanja Dunjko, Marina Gonchenko
Publikováno v:
SciPost Physics, Vol 10, Iss 5, p 114 (2021)
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
The recently proposed map [arXiv:2011.01415] between the hydrodynamic equations governing the two-dimensional triangular cold-bosonic breathers [Phys. Rev. X 9, 021035 (2019)] and the high-density zero-temperature triangular free-fermionic clouds, bo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f6e3ebe37e3147aa219458b041f9a5f1
https://scipost.org/SciPostPhys.10.5.114
https://scipost.org/SciPostPhys.10.5.114
Autor:
De Luo, Maxim Olshanii, Oleksandr V. Marchukov, Vanja Dunjko, Y. Jin, Boris A. Malomed, Jason H. V. Nguyen, Vladimir A. Yurovsky, Randall G. Hulet
Publikováno v:
Physical Review Letters. 125
We report the creation of quasi-1D excited matter-wave solitons, "breathers", by quenching the strength of the interactions in a Bose-Einstein condensate with attractive interactions. We characterize the resulting breathing dynamics and quantify the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e8d6f76e20567ef0138508c5bdbca96
https://doi.org/10.1103/physrevlett.125.183902
https://doi.org/10.1103/physrevlett.125.183902
Autor:
Maxim Olshanii, Oleksandr V. Marchukov, Joanna Ruhl, Vladimir A. Yurovsky, Randall G. Hulet, Boris A. Malomed, Vanja Dunjko
Publikováno v:
Physical Review Letters. 125
We study quantum fluctuations of macroscopic parameters of a nonlinear Schrödinger breather-a nonlinear superposition of two solitons, which can be created by the application of a fourfold quench of the scattering length to the fundamental soliton i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::313ba512f340d37b769295b234f146ed
https://doi.org/10.1103/physrevlett.125.050405
https://doi.org/10.1103/physrevlett.125.050405
We present a new class of electrostatics problems that are exactly solvable by adding finitely many image charges. Given a charge at some location inside a cavity bounded by up to four conducting grounded segments of spheres: if the spheres have a sy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aeae8f62b73623501e9196657b4326ff
http://arxiv.org/abs/1904.04655
http://arxiv.org/abs/1904.04655
Autor:
S. Choi, Joanna Ruhl, Maxim Olshanii, Adrian E. Feiguin, David Aveline, Hélène Perrin, Vanja Dunjko
Publikováno v:
Physics Letters A
Physics Letters A, Elsevier, 2016, 380, pp.177. ⟨10.1016/j.physleta.2015.09.008⟩
Physics Letters A, Elsevier, 2016, 380, pp.177. ⟨10.1016/j.physleta.2015.09.008⟩
In this Letter, we show that a three-dimensional Bose-Einstein solitary wave can become stable if the dispersion law is changed from quadratic to quartic. We suggest a way to realize the quartic dispersion, using shaken optical lattices. Estimates sh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::077c1eba9578b3a616c66ca17f668cab
https://doi.org/10.1016/j.physleta.2015.09.008
https://doi.org/10.1016/j.physleta.2015.09.008
Publikováno v:
Physical Review A
Physical Review A, American Physical Society 2017, 96 (3), ⟨10.1103/PhysRevA.96.033624⟩
Physical Review A, American Physical Society 2017, 96 (3), ⟨10.1103/PhysRevA.96.033624⟩
We derive a connection between the fourth coefficient of the short-distance Taylor expansion of the one-body correlation function, and the local three-body correlation function of the Lieb-Liniger model of $\delta$-interacting spinless bosons in one
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e4d3e661ef999f0b06825f8b4033c0b
https://hal.archives-ouvertes.fr/hal-02349364
https://hal.archives-ouvertes.fr/hal-02349364
We consider a Bose-Einstein condensate (BEC) with attractive two-body interactions in a cigar-shaped trap, initially prepared in its ground state for a given negative scattering length, which is quenched to a larger absolute value of the scattering l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f86e2634613a34ba8507081358b8bdb