Naslov
Cavity-Enhanced Optical Lattices for Scaling Neutral Atom Quantum Technologies to Higher Qubit Numbers

Autori
Park, A. J. ; Trautmann, J. ; Šantić, N. ; Klüsener, V. ; Heinz, A. ; Bloch, I. ; Blatt, S.

Izvornik
PRX Quantum (2691-3399) 3 (2022), 3; 030314, 18

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
optical lattices, cold atoms

Sažetak
We demonstrate a cavity-based solution to scale up experiments with ultracold atoms in optical lattices by an order of magnitude over state-of- the-art free-space lattices. Our two-dimensional (2D) optical lattices are created by power- enhancement cavities with large mode waists of 489(8) μm and allow us to trap ultracold strontium atoms at a lattice depth of 60 μK by using only 80 mW of input light per cavity axis. We characterize these lattices using high-resolution clock spectroscopy and resolve carrier transitions between different vibrational levels. With these spectral features, we locally measure the lattice potential envelope and the sample temperature with a spatial resolution limited only by the optical resolution of the imaging system. The measured ground-band and trap lifetimes are 18(3) s and 59(2) s, respectively, and the lattice frequency (depth) is long-term stable on the megahertz (0.1%) level. Our results show that large, deep, and stable 2D cavity-enhanced lattices can be created at any wavelength and can significantly increase the qubit number for neutral-atom-based quantum simulators, quantum computers, sensors, and optical-lattice clocks.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA