Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Deb, Amita B."'
Autor:
Deb, Amita B., Kjærgaard, Niels
Publikováno v:
Science 374, 972 (2021)
The Pauli exclusion principle forbids indistinguishable fermions to occupy the same quantum mechanical state. Its implications are profound and it for example accounts for the electronic shell structure of atoms. Here we perform measurements on the s
Externí odkaz:
http://arxiv.org/abs/2103.02319
Publikováno v:
Journal of Applied Physics 129, 154503 (2021)
The data transfer capacity of a communication channel is limited by the Shannon-Hartley theorem and scales as $\text{log}_2(1 + \text{SNR})$ for a single channel with the power signal-to-noise ratio (SNR). We implement an array of atom-optical receiv
Externí odkaz:
http://arxiv.org/abs/2102.05285
Publikováno v:
Phys. Rev. Research 2, 033474 (2020)
We study resonant dipole-dipole coupling and the associated van der Waals energy shifts in Rydberg excited atomic rubidium and potassium and investigate F\"orster resonances between interspecies pair states. A comprehensive survey over experimentally
Externí odkaz:
http://arxiv.org/abs/2009.02004
Publikováno v:
The European Physical Journal D 73, 160 (2019)
We propose a method for transferring atoms to a target quantum state for a multilevel quantum system with sequentially increasing, but otherwise unknown, energy splitting. This is achieved with a feedback algorithm that processes off-resonant optical
Externí odkaz:
http://arxiv.org/abs/1810.04921
Publikováno v:
Nature Communications 9, 4895 (2018)
Quantum mechanical scattering resonances for colliding particles occur when a continuum scattering state couples to a discrete bound state between them. The coupling also causes the bound state to interact with itself via the continuum and leads to a
Externí odkaz:
http://arxiv.org/abs/1807.01174
Autor:
Thomas, Ryan, Chilcott, Matthew, Chisholm, Craig, Deb, Amita B., Horvath, Milena, Sawyer, Bianca J., Kjærgaard, Niels
Publikováno v:
Journal of Physics.: Conference Series 875, 012007 (2017)
We report on experiments investigating the collisional properties of atoms at ultralow collision energies using an all-optical atom collider. By using a pair of optical tweezers, we can manipulate two ultracold atom clouds and collide them together a
Externí odkaz:
http://arxiv.org/abs/1709.05462
Publikováno v:
Nature Communications 8, 452 (2017)
Ultracold atomic gases have realised numerous paradigms of condensed matter physics where control over interactions has crucially been afforded by tunable Feshbach resonances. So far, the characterisation of these Feshbach resonances has almost exclu
Externí odkaz:
http://arxiv.org/abs/1704.07109
Publikováno v:
Phys. Rev. A 96, 022705 (2017)
Magnetically tunable Feshbach resonances in ultracold atomic systems are chiefly identified and characterized through time consuming atom loss spectroscopy. We describe an off-resonant dispersive optical probing technique to rapidly locate Feshbach r
Externí odkaz:
http://arxiv.org/abs/1702.02216
Akademický článek
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Autor:
Thomas, Ryan, Roberts, Kris O., Tiesinga, Eite, Wade, Andrew C. J., Blakie, P. Blair, Deb, Amita B., Kjærgaard, Niels
Publikováno v:
Nature Communications 7, 12069 (2016)
The wavefunction for indistinguishable fermions is anti-symmetric under particle exchange, which directly leads to the Pauli exclusion principle, and hence underlies the structure of atoms and the properties of almost all materials. In the dynamics o
Externí odkaz:
http://arxiv.org/abs/1607.03921