Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Bisset, Russell"'
Autor:
Klaus, Lauritz, Bland, Thomas, Poli, Elena, Politi, Claudia, Lamporesi, Giacomo, Casotti, Eva, Bisset, Russell N., Mark, Manfred J., Ferlaino, Francesca
Quantized vortices are the prototypical feature of superfluidity. Pervasive in all natural systems, vortices are yet to be observed in dipolar quantum gases. Here, we exploit the anisotropic nature of the dipole-dipole interaction of a dysprosium Bos
Externí odkaz:
http://arxiv.org/abs/2206.12265
Autor:
Bland, Thomas, Poli, Elena, Ardila, Luis A. Peña, Santos, Luis, Ferlaino, Francesca, Bisset, Russell N.
Publikováno v:
Phys. Rev. A 106, 053322 (2022)
Two-component dipolar condensates are now experimentally producible, and we theoretically investigate the nature of supersolidity in this system. We predict the existence of a binary supersolid state in which the two components form a series of alter
Externí odkaz:
http://arxiv.org/abs/2203.11119
Autor:
Norcia, Matthew A., Poli, Elena, Politi, Claudia, Klaus, Lauritz, Bland, Thomas, Mark, Manfred J., Santos, Luis, Bisset, Russell N., Ferlaino, Francesca
Angular oscillations can provide a useful probe of the superfluid properties of a system. Such measurements have recently been applied to dipolar supersolids, which exhibit both density modulation and phase coherence, and for which robust probes of s
Externí odkaz:
http://arxiv.org/abs/2111.07768
Autor:
Poli, Elena, Bland, Thomas, Politi, Claudia, Klaus, Lauritz, Norcia, Matthew A., Ferlaino, Francesca, Bisset, Russell N., Santos, Luis
Publikováno v:
Phys. Rev. A 104, 063307 (2021)
We theoretically investigate supersolidity in three-dimensional dipolar Bose-Einstein condensates. We focus on the role of trap geometry in determining the dimensionality of the resulting droplet arrays, which range from one-dimensional to zigzag, th
Externí odkaz:
http://arxiv.org/abs/2108.02682
Autor:
Bland, Thomas, Poli, Elena, Politi, Claudia, Klaus, Lauritz, Norcia, Matthew A., Ferlaino, Francesca, Santos, Luis, Bisset, Russell N.
Publikováno v:
Phys. Rev. Lett. 128, 195302 (2022)
Dipolar condensates have recently been coaxed to form the long-sought supersolid phase. While one-dimensional supersolids may be prepared by triggering a roton instability, we find that such a procedure in two dimensions (2D) leads to a loss of both
Externí odkaz:
http://arxiv.org/abs/2107.06680
Autor:
Norcia, Matthew A., Politi, Claudia, Klaus, Lauritz, Poli, Elena, Sohmen, Maximilian, Mark, Manfred J., Bisset, Russell, Santos, Luis, Ferlaino, Francesca
Supersolidity -- a quantum-mechanical phenomenon characterized by the presence of both superfluidity and crystalline order -- was initially envisioned in the context of bulk solid helium, as a possible answer to the question of whether a solid could
Externí odkaz:
http://arxiv.org/abs/2102.05555
Autor:
Tanzi, Luca, Lucioni, Eleonora, Famà, Francesca, Catani, Jacopo, Fioretti, Andrea, Gabbanini, Carlo, Bisset, Russell N., Santos, Luis, Modugno, Giovanni
Publikováno v:
Phys. Rev. Lett. 122, 130405 (2019)
The competition of dipole-dipole and contact interactions leads to exciting new physics in dipolar gases, well-illustrated by the recent observation of quantum droplets and rotons in dipolar condensates. We show that the combination of the roton inst
Externí odkaz:
http://arxiv.org/abs/1811.02613
Publikováno v:
JETP 127, 804 (2018)
We use optical images of a superfluid consisting of a weakly interacting Bose-Einstein condensate of sodium atoms to investigate the structure of quantized three-dimensional vortex filaments. We find that the measured optical contrast and the width o
Externí odkaz:
http://arxiv.org/abs/1804.03017
Autor:
Serafini, Simone, Galantucci, Luca, Iseni, Elena, Bienaimé, Tom, Bisset, Russell N., Barenghi, Carlo F., Dalfovo, Franco, Lamporesi, Giacomo, Ferrari, Gabriele
Publikováno v:
Phys. Rev. X 7, 021031 (2017)
Reconnections and interactions of filamentary coherent structures play a fundamental role in the dynamics of fluids, plasmas and nematic liquid crystals. In fluids, vortex reconnections redistribute energy and helicity among the length scales and ind
Externí odkaz:
http://arxiv.org/abs/1611.01691
Autor:
Bisset, Russell, Wang, Wenlong, Ticknor, C., Carretero-Gonzalez, R., Frantzeskakis, D. J., Collins, L. A., Kevrekidis, P. G.
Publikováno v:
Phys. Rev. A 92, 043601 (2015)
In the present work, we investigate how single- and multi-vortex-ring states can emerge from a planar dark soliton in three-dimensional (3D) Bose-Einstein condensates (confined in isotropic or anisotropic traps) through bifurcations. We characterize
Externí odkaz:
http://arxiv.org/abs/1507.07606