4 papers
Low-Energy Purification of Crystal Defects by Rydberg Excitons
Shiva Kant Tiwari, Tijs Karman, Valentin Walther
Recent experiments show that optically generated Rydberg excitons in cuprous oxide can neutralize charged impurities, strongly reducing stray electric fields and effectively purify…
Three-body interactions in Rydberg lattices
Rhine Samajdar, Mikhail D. Lukin, Valentin Walther
Programmable arrays of neutral Rydberg atoms are one of the leading platforms today for scalable quantum simulation and computation. In these systems, the dipole-dipole interaction…
Multi-excitation scattering in subwavelength atomic arrays
Yidan Wang, Oriol Rubies-Bigorda, Valentin Walther +1
Subwavelength atomic arrays are a leading platform for engineering light-matter interactions, enabling near-perfect single-photon mirrors and robust quantum memories based on long-…
Universal two-excitation scattering in two-dimensional subwavelength atomic arrays
Yidan Wang, Oriol Rubies-Bigorda, Valentin Walther +1
Subwavelength atomic arrays are a leading platform for engineering strong light-matter interactions, presenting exciting opportunities for quantum science. However, a full understa…