Georgios A. Siviloglou - WordPress.com...Georgios A. Siviloglou Southern Forum 2019, Shenzhen, 11-13...
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Georgios A. Siviloglou
Southern Forum 2019, Shenzhen, 11-13 January 2019
Building a quantum assembler for magnetic atoms
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• 2004 – 2010 PhD with Christodoulides at CREOL, USA • 2010 – 2014 Postdoc and research scientist at MIT with Ketterle • 2014 – 2018 Postdoc at the University of Amsterdam with Schreck• 2018 – Now Associate researcher/PI at SIQSE/SUSTech
Who I am
Short biography
Main research accomplishments
Self-bending Airy beams 𝒫𝒯-symmetry in optics
Hofstadter Hamiltonian A quantum gas experiment of strontium
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I am looking for theory/experiment collaborations
Open positions for Engineers, Postdocs, IP, RAP
What I want to do
https://coldatoms-lab.com/
Building a quantum assembler for magnetic atoms
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Hot atoms Cold atoms
Why do we need low temperatures?
Photo by T. W. Hänsch
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Only 13 elements have been brought to quantum degeneracy
A. Frisch, PhD thesis (Ferlaino Group)
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Quantum simulation with ultracold atoms
Vortex lattice
AFM
Strong magnetic
fields
Graphene physics
http://www.rle.mit.edu/cua_pub/ketterle_group/Nice_pics.htmC. J. Kennedy et al., Nature Physics 11, 859–864 (2015)A. Mazurenko et al., Nature 545, 462 (2017)https://www.quantumoptics.ethz.ch/gallery/albums/userpics/10002/honeycomb_atoms_bandstructure.jpg
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Optical lattice clocks Programmable quantum simulator
Applications
Sr
Already here!
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Project title my name date place and a(some) catchy picture(s)
A new strontium quantum gas experiment
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Strontium quantum gas experiment with a microscope
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Strontium quantum gas experiment with a microscope
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• Gauge fields in topological lattices
What can we do with a quantum gas microscope
M. Mancini et al., Science 349, 6255, 1510-1513 (2015)
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Artificial gauge fields with ultranarrow transitions
Excessive heating
Ultranarrow transitions
APS/C. Chin and E. MuellerS. Stellmer, PhD thesis (Grimm and Schreck Group)
Other opportunities
• Ultrasensitive magnetometers• Feshbach resonances• Direct trapping of metastable states• Ground-excited state molecules
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• 2-electrons in the outer shell• 4 stable isotopes• A broad transition at 461 nm• A narrow transition at 689 nm• Two ultranarrow transitions (mHz!)
Strontium properties
https://www.sciencephoto.com/contributor/r3m/Photo by H. Pniok
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The ultranarrow transition 1𝑆0 →3𝑃2 of 87𝑆𝑟
The frequency of the ultranarrow 1𝑆0 →3𝑃2 transition in 87𝑆𝑟 arXiv:1812.02115 [physics.atom-ph]
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The frequency of the ultranarrow 1𝑆0 →3𝑃2 transition in 87𝑆𝑟 arXiv:1812.02115 [physics.atom-ph]
The ultranarrow transition 1𝑆0 →3𝑃2 of 87𝑆𝑟
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Spectroscopy for the ultranarrow transition 1𝑆0 →3𝑃2
Iodine spectroscopy provides absolute reference
The frequency of the ultranarrow 1𝑆0 →3𝑃2 transition in 87𝑆𝑟 arXiv:1812.02115 [physics.atom-ph]
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Microscope objective for imaging atomic strontium with 0.63 micrometer resolution (in preparation)
A microscope objective with submicron resolution
630 nm resolution
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Less than 10 atoms
Fluorescence picture
Trapping and imaging strontium atoms with our microscope
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https://coldatoms-lab.com/
Building a quantum assembler for magnetic atoms
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A quantum gas experiment
• Large quantum gases (BECs, DFGs)
• Many-body and topological phenomena
• Quantum gas microscopy
• Quantum chemistry
A few-atom quantum assembler
• Assemble sample atom-by-atom
• Observe & manipulate single atoms
• Quantum optics with interactions
• Single-molecule creation
What I want to do
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A quantum gas experiment
• Large quantum gases (BECs, DFGs)
• Many-body and topological phenomena
• Quantum gas microscopy
• Quantum chemistry
A few-atom quantum assembler
• Assemble sample atom-by-atom
• Observe & manipulate single atoms
• Quantum optics with interactions
• Single-molecule creation
What I want to do
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Why magnetic atoms?
LENS GroupFerlaino GroupLev Group
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Why magnetic atoms?
Dipolar interactions Long-range interactions
A. Frisch, PhD thesis (Ferlaino Group)S. Kotochigova, Rep. Prog. Phys. 77, 093901 (2014)
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Why erbium? Strongly magnetic, many isotopes
K. Aikawa et al., Phys. Rev. Lett., 108, 210401 (2012)
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Why erbium? Many Feschbach resonances
• It is highly magnetic μ = 7μΒ and thus strongly dipolar
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Why erbium? High resolution, efficient cooling
H. Y. Ban et al., Optics Express 13, 8, 3185 (2005)A. Frisch, PhD thesis (Ferlaino Group)
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Few-atom quantum assemblers
Programmable quantum simulatorThree-dimensional atomic array
D. Barredo et al., Nature 561, 79 (2018)
“For the optical tweezers and their application to biological systems."
Arthur Ashkin
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© nature
Creating three-dimensional atom arrays for quantum computing
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Machine learning for
atom loading
Ideas for collaboration
Quantum computation for magnetic
atoms
Bose-Fermi molecules of
erbium
𝒫𝒯- and
super-symmetry for atoms
Stable lasersfor
spin control
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I am looking for theory/experiment collaborations
Open positions for Engineers, Postdocs, IP, RAP
https://coldatoms-lab.com/
Building a quantum assembler for magnetic atoms