Zobrazeno 1 - 10
of 802
pro vyhledávání: '"Schmiedmayer, J"'
Autor:
Borselli, F., Maiwöger, M., Zhang, T., Haslinger, P., Mukherjee, V., Negretti, A., Montangero, S., Calarco, T., Mazets, I., Bonneau, M., Schmiedmayer, J.
Publikováno v:
Phys. Rev. Lett. 126, 083603 (2021)
We demonstrate a source for correlated pairs of atoms characterized by two opposite momenta and two spatial modes forming a Bell state only involving external degrees of freedom. We characterize the state of the emitted atom beams by observing strong
Externí odkaz:
http://arxiv.org/abs/2009.13438
Autor:
Gluza, M., Sabino, J., Ng, N. H. Y., Vitagliano, G., Pezzutto, M., Omar, Y., Mazets, I., Huber, M., Schmiedmayer, J., Eisert, J.
Publikováno v:
PRX Quantum 2, 030310 (2021)
Recent years have enjoyed an overwhelming interest in quantum thermodynamics, a field of research aimed at understanding thermodynamic tasks performed in the quantum regime. Further progress, however, seems to be obstructed by the lack of experimenta
Externí odkaz:
http://arxiv.org/abs/2006.01177
Publikováno v:
Phys. Rev. B 101, 224102 (2020)
We study a transition between a homogeneous and an inhomogeneous phase in a system of one-dimensional, Raman tunnel-coupled Bose gases. The homogeneous phase shows a flat density and phase profile, whereas the inhomogeneous ground state is characteri
Externí odkaz:
http://arxiv.org/abs/2002.12311
Publikováno v:
In IFAC PapersOnLine 2023 56(2):1339-1344
Publikováno v:
Communications Physics 3, 12 (2020)
Quantum simulators allow to explore static and dynamical properties of otherwise intractable quantum many-body systems. In many instances, however, it is the read-out that limits such quantum simulations. In this work, we introduce a new paradigm of
Externí odkaz:
http://arxiv.org/abs/1807.04567
Autor:
Garcia-March, M. A., van Frank, S., Bonneau, M., Schmiedmayer, J., Lewenstein, M., Santos, Lea F.
Publikováno v:
New J. Phys. 20, 113039 (2018)
We study the complex quantum dynamics of a system of many interacting atoms in an elongated anharmonic trap. The system is initially in a Bose-Einstein condensed state, well described by Thomas-Fermi profile in the elongated direction and the ground
Externí odkaz:
http://arxiv.org/abs/1807.02352
Publikováno v:
Nature 563, 225 (2018)
We provide experimental evidence of universal dynamics far from equilibrium during the relaxation of an isolated one-dimensional Bose gas. Following a rapid cooling quench, the system exhibits universal scaling in time and space, associated with the
Externí odkaz:
http://arxiv.org/abs/1805.12310
Publikováno v:
New J. Phys. 20, 055005 (2018)
We present an effective and fast (few microseconds) procedure for transferring ultra-cold atoms from the ground state in a harmonic trap into the desired bands of an optical lattice. Our shortcut method is a designed pulse sequence where the time dur
Externí odkaz:
http://arxiv.org/abs/1802.08779
Publikováno v:
Communication Physics 1, 29 (2018)
Ramsey interferometers (RIs) using internal electronic or nuclear states find wide applications in science and engineering. We develop a matter wave Ramsey interferometer for motional quantum states exploiting the S- and D-bands of an optical lattice
Externí odkaz:
http://arxiv.org/abs/1712.07520
Autor:
van Frank, S., Bonneau, M., Schmiedmayer, J., Hild, S., Gross, C., Cheneau, M., Bloch, I., Pichler, T., Negretti, A., Calarco, T., Montangero, S.
Publikováno v:
Scientific Reports 6, 34187 (2016)
Quantum technologies will ultimately require manipulating many-body quantum systems with high precision. Cold atom experiments represent a stepping stone in that direction: a high degree of control has been achieved on systems of increasing complexit
Externí odkaz:
http://arxiv.org/abs/1511.02247