Research directions / Objectives

 Mission Statement

To explore the unprecedented potential of matter-wave interferometry

To look at (de)coherence in increasingly complex quantum systems.

 The three experiments:

 BEC 1: Coherently guided matter-wave interferometry. Our matter-waves will be made from Bose-Einstein Condensates (BEC). The interferometer will consist of a novel magnetic ring-shaped waveguide based on time-averaged adiabatic potentials (TAAP). A little 'teaser' movie of our TAAP can be seen here. With this experiment we are part of the Marie Curie Initial Training Network QTea (395k€), where we are developing the next generation of guided matter-wave interferometers. We are also the coordinators of the MatterWave network (a FET-STREP 2013-2017 network by the EU Total 2.6M€ of which IESL will get 652k€).

 BEC 2: Atom Lasers and BEC at high atom numbers. We have set up a second experiment, which looks at BEC at higher atom numbers. Here, we have recently demonstrated a novel atom laser, which has a record flux of 4x10^7 atom/s. We also made the coldest thermal source to date (200nK). We are currently exploring the phase properties of atom lasers.

In the future we plan to study the kinetics of the condensation process itself, as well as the rise and fall of coherence in phase-fluctuating condensates.

 BEC in space: Testing the equivalence principle. We are the coordinators of the Greek contribution to the STE-QUEST mission to send a BEC into space. The idea of the mission is to test Einstein’s equivalence principle, which states that the mass of acceleration and attraction are the same. Our part will be to design and construct the optical switching board at the center of the mission. The mission is a pan-European effort lead by Prof. Rasel from Hannover.

HIGHLIGHTS

Awards and Prizes

2005: ‘Certificate of Excellence‘
 of the
Young Scholars Competition, University of Berkeley
2006: Marie-Curie Excellence Grant  (MatterWaves)

Scientific Highlights

2009 The first Bose-Einstein Condensate of South-Eastern Europe
2013 By one order of magnitude the brightest atom laser ever

 

 

Research Topics

RESEARCH DIRECTIONS / OBJECTIVES

 Mission Statement

To explore the unprecedented potential of matter-wave interferometry

To look at (de)coherence in increasingly complex quantum systems.

 The three experiments:

 BEC 1: Coherently guided matter-wave interferometry. Our matter-waves will be made from Bose-Einstein Condensates (BEC). The interferometer will consist of a novel magnetic ring-shaped waveguide based on time-averaged adiabatic potentials (TAAP). A little 'teaser' movie of our TAAP can be seen here. With this experiment we are part of the Marie Curie Initial Training Network QTea (395k€), where we are developing the next generation of guided matter-wave interferometers. We are also the coordinators of the MatterWave network (a FET-STREP 2013-2017 network by the EU Total 2.6M€ of which IESL will get 652k€).

 BEC 2: Atom Lasers and BEC at high atom numbers. We have set up a second experiment, which looks at BEC at higher atom numbers. Here, we have recently demonstrated a novel atom laser, which has a record flux of 4x10^7 atom/s. We also made the coldest thermal source to date (200nK). We are currently exploring the phase properties of atom lasers.

In the future we plan to study the kinetics of the condensation process itself, as well as the rise and fall of coherence in phase-fluctuating condensates.

 BEC in space: Testing the equivalence principle. We are the coordinators of the Greek contribution to the STE-QUEST mission to send a BEC into space. The idea of the mission is to test Einstein’s equivalence principle, which states that the mass of acceleration and attraction are the same. Our part will be to design and construct the optical switching board at the center of the mission. The mission is a pan-European effort lead by Prof. Rasel from Hannover.

 

HIGHLIGHTS

Publication
2019: Nature Publications: Hypersonic Transport of Bose-Einstein Condensates in a Neutral-Atom Accelerator Ring (https://doi.org/10.1038/s41586-019-1273-5)
Awards and Prizes
2005: ‘Certificate of Excellence‘
 of the
Young Scholars Competition, University of Berkeley
2006: Marie-Curie Excellence Grant  (MatterWaves)

Scientific Highlights
2009 The first Bose-Einstein Condensate of South-Eastern Europe
2013 By one order of magnitude the brightest atom laser ever

 

 

Quantum Enhanced Sensing with Cold Atoms
COST network on Cold Atom Quantum Technologies (CA16221)
Cavity-Enhanced Microscopy
Mask Based Lithography for Fast, Large Scale Pattern Generation with Nanometer Resolution
Hypersonic Bose–Einstein condensates in accelerator rings
Saurabh Pandey, Hector Mas, Giannis Drougakis, Premjith Thekkeppatt, Vasiliki Bolpasi, Georgios Vasilakis, Konstantinos Poulios, and Wolf von Klitzing
Nature, Volume:AOP, Page:205--211, Year:2019, DOI:doi.org/10.1038/s41586-019-1273-5
See also: Atomic rollercoaster
Federico Levi
Nature Physics, Volume:July, Page:-, Year:2019, DOI:doi.org/10.1038/s41567-019-0588-3
Matter-wave interferometers using TAAP rings
P. Navez, S. Pandey, H. Mas, K. Poulios, T. Fernholz, and W. von Klitzing
N J Phys, Volume:18, Page:075014, Year:2016, DOI:dx.doi.org/10.1088/1367-2630/18/7/075014
Microwave spectroscopy of radio-frequency-dressed Rb87
G. A. Sinuco-Leon, B. M. Garraway, H. Mas, S. Pandey, G. Vasilakis, V. Bolpasi, W. von Klitzing, B. Foxon, S. Jammi, K. Poulios, and et al.
Phys. Rev. A, Volume:100, Page:053416-2, Year:2019, DOI:dx.doi.org/10.1103/PhysRevA.100.053416
Transition from the mean-field to the bosonic Laughlin state in a rotating Bose-Einstein condensate
G. Vasilakis, A. Roussou, J. Smyrnakis, M. Magiropoulos, W. von Klitzing, and G. M. Kavoulakis
Phys. Rev. A, Volume:100, Page:023606-1, Year:2019, DOI:10.1103/PhysRevA.100.023606
AEDGE: Atomic Experiment for Dark Matter and Gravity Exploration in Space
Andrea Bertoldi et al.
arXiv e-prints, Volume:1908, Issue:00802, Page:1-25, Year:2019, DOI:arxiv.org/abs/1908.00802
ELGAR -- a European Laboratory for Gravitation and Atom-interferometric Research
B. Canuel et al.
arXiv e-prints, Volume:1911, Page:03701, Year:2019, DOI:arxiv.org/abs/1911.03701
Time-Averaged Adiabatic Potentials: Versatile Matter-Wave Guides and Atom Traps
I. Lesanovsky and W. von Klitzing
PRL, Volume:99, Page:083001, Year:2007, DOI:10.1103/PhysRevLett.99.083001
Simple precision measurements of optical beam sizes
M. Mylonakis, S. Pandey, K. G. Mavrakis, G. Drougakis, G. Vasilakis, D. G. Papazoglou, and W. von Klitzing
Applied Optics, Volume:57, Page:9863, Year:2018, DOI:dx.doi.org/10.1364/AO.57.009863
Precise and robust optical beam steering for space optical instrumentation
G. Drougakis, K. G. Mavrakis, S. Pandey, G. Vasilakis, K. Poulios, D. G. Papazoglou, and W. von Klitzing
CEAS Space Journal, Volume:-, Page:1-9, Year:2019, DOI:dx.doi.org/10.1007/s12567-019-00271-x

Heads

Dr. von Klitzing Wolf
Principal Researcher

Scientific Staff

Dr. Vasilakis Giorgos
Assistant Researcher

Research Associates

Dr. Bolpasi Vasiliki
PostDoctoral Fellow

Students

Mr. Drougakis Giannis
Ph.D. student

Alumni

Dr. Pandey Saurabh
Alumni
Dr. Mas Hector
Alumni
Mr. Thekkeppatt Premjith
Alumni