aqora

Quantum simulation of Ising-type Hamiltonians in tunable 2D arrays of single Rydberg atoms (Orale)

Daniel Barredo

Jul 4, 20160 citations

Experimental quantum simulation of the Ising model in 2d atomic arrays (Orale)

Sylvain de Léséleuc

Apr 5, 20170 citations

Quantum simulation of spin Hamiltonians using 2d arrays of single Rydberg atoms (Orale)

Thierry Lahaye

Jun 25, 20170 citations

Quantum simulation of Ising and XY spin models with Rydberg atom arrays

Thierry Lahaye

Oct 1, 20220 citations

Laser trapping of cold circular Rydberg atoms for quantum simulation

Rodrigo G. Cortiñas

We propose a new paradigm for quantum simulation of spin-1/2 arrays, providing unprecedented flexibility and allowing one to explore domains that remain unexplored, based on laser-trapped circular Rydberg atoms. The long intrinsic atomic lifetimes, combined with the inhibition of their microwave spontaneous emission and their negligible photoionisation, make operation in the minute range realistic. The proposed simulator realizes an XXZ spin-1/2 Hamiltonian, with nearest-neighbour couplings ranging from a few to tens of kilohertz. All the model parameters can be dynamically tuned at will, making a large range of simulations accessible. Thus, the system evolution can be followed long enough to be relevant for ground-state adiabatic preparation and for the study of thermalization and disorder. In this thesis, as a first step towards the implementation of this quantum simulation scheme, we (i) demonstrate the preparation of cold circular Rydberg states in a 4,2 K cryogenic environment with optical access out of a cold atom cloud. Their lifetime reveals an effective microwave black-body temperature of 11±2 K. We (ii) assess the single qubit coherence time (268±5 μs) and lifetime (3,7±0,1 ms), and, finally, we (iii) demonstrate the laser trapping of circular Rydberg atoms to prove their negligible photoionisation at the timescale of 10 ms.We propose a new paradigm for quantum simulation of spin-1/2 arrays, providing unprecedented flexibility and allowing one to explore domains that remain unexplored, based on laser-trapped circular Rydberg atoms. The long intrinsic atomic lifetimes, combined with the inhibition of their microwave spontaneous emission and their negligible photoionisation, make operation in the minute range realistic. The proposed simulator realizes an XXZ spin-1/2 Hamiltonian, with nearest-neighbour couplings ranging from a few to tens of kilohertz. All the model parameters can be dynamically tuned at will, making a large range of simulations accessible. Thus, the system evolution can be followed long enough to be relevant for ground-state adiabatic preparation and for the study of thermalization and disorder. In this thesis, as a first step towards the implementation of this quantum simulation scheme, we (i) demonstrate the preparation of cold circular Rydberg states in a 4,2 K cryogenic environment with optical access out of a cold atom cloud. Their lifetime reveals an effective microwave black-body temperature of 11±2 K. We (ii) assess the single qubit coherence time (268±5 μs) and lifetime (3,7±0,1 ms), and, finally, we (iii) demonstrate the laser trapping of circular Rydberg atoms to prove their negligible photoionisation at the timescale of 10 ms.

May 5, 20200 citations

Realizing quantum Ising models in tunable two-dimensional arrays of single Rydberg atoms

Antoine Browaeys

Mar 4, 20192 citations

Experimental quantum simulation of the Ising model in 2d atomic arrays

Abstract

Related papers

Experimental quantum simulation of the Ising model in 2d atomic arrays

Abstract

Related papers