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Discrete Quantum Simulator

Objective

We propose to build a two-dimensional (2D) discrete quantum simulator based on ensembles of ultracold neutral atoms. In this system all degrees of freedom will be controlled at the quantum limit: the number and positions of the atoms, as well as their internal (qubit) and vibrational states. The dynamics is implemented by discrete steps of spin-dependent transport combined with controlled cold collisions of the atoms.

Although numerous theoretical studies have considered this architecture as the most promising route to quantum simulation, it has not yet been realized experimentally in all essential aspects.

This simulator allows us to study dynamical properties of single-particle and many-body systems in engineered 2D environments. In single particle discrete systems, also known as quantum walks, we plan to investigate transport properties connected to graphene-like Dirac points, and localization phenomena associated with disorder. In the many-particle setting we will realize 2D cluster states as needed for measurement-based quantum computation, as well as simple quantum cellular automata.

Call for proposal

ERC-2011-ADG_20110209
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Host institution

RHEINISCHE FRIEDRICH-WILHELMS-UNIVERSITAT BONN
Address
Regina Pacis Weg 3
53113 Bonn
Germany
Activity type
Higher or Secondary Education Establishments
EU contribution
€ 1 758 488
Principal investigator
Dieter Meschede (Prof.)
Administrative Contact
Daniela Hasenspuch (Dr.)

Beneficiaries (2)

RHEINISCHE FRIEDRICH-WILHELMS-UNIVERSITAT BONN
Germany
EU contribution
€ 1 758 488
Address
Regina Pacis Weg 3
53113 Bonn
Activity type
Higher or Secondary Education Establishments
Principal investigator
Dieter Meschede (Prof.)
Administrative Contact
Daniela Hasenspuch (Dr.)
GOTTFRIED WILHELM LEIBNIZ UNIVERSITAET HANNOVER
Germany
EU contribution
€ 817 085
Address
Welfengarten 1
30167 Hannover
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Anke-Nicola Nemeth (Ms.)