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QBox SIGNED

Quantum Gas in a Box

Total Cost €

EC-Contrib. €

Partnership

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Outcomes and
results

QBox project word cloud

Explore the words cloud of the QBox project. It provides you a very rough idea of what is the project "QBox" about.

lda atomic condensed unexplored latter conventional gases breaks emerge critical equilibrium practical kibble difference setting astrophysics materials interesting zurek local fundamental ultracold hindrance force standard newly trapped length serious contrast box dynamically calculations unitary diverges navigation sensing usually body phenomena harmonic former physics flexible 39k approximation quenches dynamics temperature trapping uniform interactions quantum bose correlation harmonically tuneable traps trap homogeneous modern theoretical gas tackled interacting connections transitions outstanding closer mean slowing close largely density energy run

Project "QBox" data sheet

The following table provides information about the project.

Coordinator	THE CHANCELLOR MASTERS AND SCHOLARSOF THE UNIVERSITY OF CAMBRIDGE Organization address address: TRINITY LANE THE OLD SCHOOLS city: CAMBRIDGE postcode: CB2 1TN website: www.cam.ac.uk contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.
Coordinator Country	United Kingdom [UK]
Total cost	1˙943˙753 €
EC max contribution	1˙943˙753 € (100%)
Programme	1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
Code Call	ERC-2015-CoG
Funding Scheme	ERC-COG
Starting year	2016
Duration (year-month-day)	from 2016-05-01 to 2021-04-30

Partnership

Take a look of project's partnership.

#	participants	country	role	EC contrib. [€]
1	THE CHANCELLOR MASTERS AND SCHOLARSOF THE UNIVERSITY OF CAMBRIDGE THE CHANCELLOR MASTERS AND SCHOLARSOF THE UNIVERSITY OF CAMBRIDGE Organization address address: TRINITY LANE THE OLD SCHOOLS city: CAMBRIDGE postcode: CB2 1TN website: www.cam.ac.uk contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.	UK (CAMBRIDGE)	coordinator	1˙943˙753.00

Map

Project objective

'Ultracold atomic gases offer flexible systems for fundamental studies of both equilibrium and non-equilibrium many-body problems that are relevant across many fields, from condensed matter physics to high-energy physics and astrophysics. In the long run, research on these systems could also lead to practical applications, in the development of novel materials, force sensing, navigation, and quantum information processing.

Traditionally, an important difference between 'conventional' many-body systems and ultracold gases has been that the former are usually spatially uniform, while the latter were produced in harmonic traps. This difference can often be addressed using the local density approximation (LDA), but for studies of some very important problems it is a serious hindrance. In particular, LDA breaks down close to phase transitions, where the correlation length diverges, and where (due to the “critical slowing down” of the system) some of the most interesting non-equilibrium effects also emerge.

Here we propose a comprehensive study of both equilibrium and non-equilibrium many-body phenomena in a homogeneous 39K Bose gas with dynamically tuneable interactions. The use of a homogeneous quantum gas, produced in our newly developed box-like trapping potential (in contrast to the standard setting of a harmonic trap) is a particularly important and unique aspect of this proposal, which will allow for closer connections with both other many-body systems and the theoretical calculations.

We will specifically focus on problems in beyond-mean-field physics and on those that cannot be effectively tackled using a harmonically trapped gas. The outstanding problems we will address range from the 50-year-old equilibrium problem of the critical temperature of an interacting homogeneous gas, to the modern topics of quenches and non-equilibrium (Kibble-Zurek and beyond) critical dynamics, to the largely unexplored problem of the unitary Bose gas. '

Publications

List of publications.
year	authors and title	journal	last update
2018	Christoph Eigen, Jake A. P. Glidden, Raphael Lopes, Eric A. Cornell, Robert P. Smith, Zoran Hadzibabic Universal prethermal dynamics of Bose gases quenched to unitarity published pages: 221-224, ISSN: 0028-0836, DOI: 10.1038/s41586-018-0674-1	Nature 563/7730	2020-01-20
2017	Christoph Eigen, Jake A.â€‰P. Glidden, Raphael Lopes, Nir Navon, Zoran Hadzibabic, Robert P. Smith Universal Scaling Laws in the Dynamics of a Homogeneous Unitary Bose Gas published pages: , ISSN: 0031-9007, DOI: 10.1103/PhysRevLett.119.250404	Physical Review Letters 119/25	2020-01-20
2018	Richard J. Fletcher, Jay Man, Raphael Lopes, Panagiotis Christodoulou, Julian Schmitt, Maximilian Sohmen, Nir Navon, Robert P. Smith, Zoran Hadzibabic Elliptic flow in a strongly interacting normal Bose gas published pages: , ISSN: 2469-9926, DOI: 10.1103/PhysRevA.98.011601	Physical Review A 98/1	2020-01-20
2016	Nir Navon, Alexander L. Gaunt, Robert P. Smith, Zoran Hadzibabic Emergence of a turbulent cascade in a quantum gas published pages: 72-75, ISSN: 0028-0836, DOI: 10.1038/nature20114	Nature 539/7627	2020-01-20
2017	Raphael Lopes, Christoph Eigen, Nir Navon, David ClÃ©ment, Robert P. Smith, Zoran Hadzibabic Quantum Depletion of a Homogeneous Bose-Einstein Condensate published pages: , ISSN: 0031-9007, DOI: 10.1103/PhysRevLett.119.190404	Physical Review Letters 119/19	2020-01-20
2017	Raphael Lopes, Christoph Eigen, Adam Barker, Konrad G.â€‰H. Viebahn, Martin Robert-de-Saint-Vincent, Nir Navon, Zoran Hadzibabic, Robert P. Smith Quasiparticle Energy in a Strongly Interacting Homogeneous Bose-Einstein Condensate published pages: , ISSN: 0031-9007, DOI: 10.1103/PhysRevLett.118.210401	Physical Review Letters 118/21	2020-01-20
2017	Richard J. Fletcher, Raphael Lopes, Jay Man, Nir Navon, Robert P. Smith, Martin W. Zwierlein, Zoran Hadzibabic Two- and three-body contacts in the unitary Bose gas published pages: 377-380, ISSN: 0036-8075, DOI: 10.1126/science.aai8195	Science 355/6323	2020-01-20
2016	Christoph Eigen, Alexander L. Gaunt, Aziza Suleymanzade, Nir Navon, Zoran Hadzibabic, Robert P. Smith Observation of Weak Collapse in a Bose-Einstein Condensate published pages: , ISSN: 2160-3308, DOI: 10.1103/PhysRevX.6.041058	Physical Review X 6/4	2020-01-20

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