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Professor Valentin Walther's research focuses on physical chemistry, particularly Rydberg excitations and highly-excited states that exhibit enormous wave function sizes and significant dipole moments. His work aims to develop methods and schemes to observe and characterize the effects of strong correlations, with applications in quantum information science. His group is interested in dual platforms - atomic systems and semiconductors. In atomic platforms, his research pivots around developing high precision quantum devices, utilizing arrays of neutral Rydberg atoms which are emerging as prime candidates for quantum computing, alongside exploring novel types of Rydberg molecules, specifically macrodimers with bond lengths in the micron range. Walther's semiconductor research involves Rydberg excitations of electron-hole bound pairs, known as excitons, which he began investigating after a breakthrough observation in 2014. His aim here is to establish a theoretical description of Rydberg states and their interactions that influence the optical properties of semiconductors.
GRE scores (General and Subject) are NOT considered.