Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Reimann, Stephanie M."'
Even though the one-dimensional contact interaction requires no regularization, renormalization methods have been shown to improve the convergence of numerical ab initio calculations considerably. In this work, we compare and contrast these methods:
Externí odkaz:
http://arxiv.org/abs/2408.10052
Ring-shaped superfluids with weak links provide a perfect environment for studying persistent currents and dynamic stirring protocols. Here, we investigate the effects of a weak-link system on dipolar supersolids. By calculating the ground state ener
Externí odkaz:
http://arxiv.org/abs/2305.02972
Autor:
Mukherjee, Koushik, Tengstrand, Mikael Nilsson, Cardinale, Tiziano Arnone, Reimann, Stephanie M.
We theoretically investigate a novel supersolid structure taking the form of stacked, disk-shaped superfluid droplets connected via a dilute superfluid, in an antidipolar condensate. A phase diagram is determined for varying the particle number and s
Externí odkaz:
http://arxiv.org/abs/2304.06456
Autor:
Potts, Heidi, Josefi, Josef, Chen, I-Ju, Lehmann, Sebastian, Dick, Kimberly A., Leijnse, Martin, Reimann, Stephanie M., Bengtsson, Jakob, Thelander, Claes
Publikováno v:
Phys. Rev. B 104, 081409 (2021)
We engineer a system of two strongly confined quantum dots to gain reproducible electrostatic control of the spin at zero magnetic field. Coupling the dots in a tight ring-shaped potential with two tunnel barriers, we demonstrate that an electric fie
Externí odkaz:
http://arxiv.org/abs/2104.11561
Publikováno v:
Phys. Rev. A 103, 053302 (2021)
In this work, we present the study of the stationary structures and the breathing mode behavior of a two-dimensional self-bound binary Bose droplet. We employ an analytical approach using a variational ansatz with a super-Gaussian trial order paramet
Externí odkaz:
http://arxiv.org/abs/2012.09777
Autor:
Bayha, Luca, Holten, Marvin, Klemt, Ralf, Subramanian, Keerthan, Bjerlin, Johannes, Reimann, Stephanie M., Bruun, Georg M., Preiss, Philipp M., Jochim, Selim
Publikováno v:
Nature 587, 583-587 (2020)
Many-body physics describes phenomena which cannot be understood looking at a systems' constituents alone. Striking manifestations are broken symmetry, phase transitions, and collective excitations. Understanding how such collective behaviour emerges
Externí odkaz:
http://arxiv.org/abs/2004.14761
Publikováno v:
Phys. Rev. A 102, 043304 (2020)
Supersolidity - a coexistence of superfluidity and crystalline or amorphous density variations - has been vividly debated ever since its conjecture. While the initial focus was on helium-4, recent experiments uncovered supersolidity in ultra-cold dip
Externí odkaz:
http://arxiv.org/abs/2001.04751
Akademický článek
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Autor:
Bengtsson, Jakob, Tengstrand, Mikael Nilsson, Wacker, Andreas, Samuelsson, Peter, Ueda, Masahito, Linke, Heiner, Reimann, Stephanie M.
In a classic thought experiment, Szilard suggested a heat engine where a single particle, for example an atom or a molecule, is confined in a container coupled to a single heat bath. The container can be separated into two parts by a moveable wall ac
Externí odkaz:
http://arxiv.org/abs/1701.08138
Autor:
Murmann, Simon, Deuretzbacher, Frank, Zürn, Gerhard, Bjerlin, Johannes, Reimann, Stephanie M., Santos, Luis, Lompe, Thomas, Jochim, Selim
Publikováno v:
Phys. Rev. Lett. 115, 215301 (2015)
We report on the deterministic preparation of antiferromagnetic Heisenberg spin chains consisting of up to four fermionic atoms in a one-dimensional trap. These chains are stabilized by strong repulsive interactions between the two spin components wi
Externí odkaz:
http://arxiv.org/abs/1507.01117