10 citations · 13 across the 6 of their papers we have counts for
6 papers
Beyond a Bag of Features: Set-Level Instability in Sparse Autoencoders
Nikolai Bolik, Lennart Stöpler, Artur Andrzejak
Shani et al. (2026) show that LLM representations broadly recover human category boundaries, while failing to reflect fine-grained typicality structure. Their analysis uses cosine…
KnowledgeDebugger -- an Exploration Tool for Knowledge Localization and Editing in Transformers
Eric Benz, Lennart Stöpler, Nikolai Bolik +1
Recent research has increasingly focused on understanding how Transformers store and process knowledge, as well as how this knowledge can be edited. Research work in this area is o…
Impact of Boundary Conditions on the Double-Kicked Quantum Rotor
Victoria Motsch, Nikolai Bolik, Sandro Wimberger
We study the on-resonance Spin-1/2 Double Kicked Rotor, a periodically driven quantum system that hosts topological phases. Motivated by experimental constraints, we analyze the ef…
Spontaneous-emission induced ratchet in atom-optics kicked rotor quantum walks
Nikolai Bolik, Sandro Wimberger
Quantum walks have gained significant attention over the past decades, mainly because of their variety of implementations and applications. Atomic quantum walks are typically subje…
Detecting Topological phase transitions in a double kicked quantum rotor
Nikolai Bolik, Caspar Groiseau, Jerry H. Clark +3
We present a concrete theoretical proposal for detecting topological phase transitions in double kicked atom-optics kicked rotors with internal spin-1/2 degree of freedom. The impl…
Light-shift induced behaviors observed in momentum-space quantum walks
Nikolai Bolik, Caspar Groiseau, Jerry H. Clark +5
Over the last decade there have been many advances in studies of quantum walks (QWs) including a momentum-space QW recently realized in our spinor Bose-Einstein condensate system.…