Quantum Information in Microscopy

Quantum information science is central to the modern study of quantum physics, both in fundamental science and technology. Concepts such as information, entanglement and decoherence shed new light on natural physical phenomena, together with their impact on the rapidly advancing realms of quantum computation, communication, sensing, and metrology. As a result of this fruitful dialog between theory and applications, it has become advantageous and even necessary to use the language of quantum information in the quest to generate new analytical capabilities for quantum devices. Promising candidates for such devices are microscopes, which are incredible platforms to study quantum informational concepts in isolated settings of 2-particle quantum interactions. In this talk, I will present the analysis of two microscopy models through the lens of quantum information. The first one is photon-induced nearfield electron microscopy (PINEM), where we showed how classical light induces multiple qubits on a single free electron. This discovery has spawned multiple new tools for quantum computation within electron microscopy. The second one is magnetic force microscopy (MFM), where we showed that counterintuitively, big molecular probes can out-score more delicate probes when measuring quantum magnetic particles. We optimized the molecular probe in terms of complexity and measurement success probability, and showed a tight bound arising from the theory of imperfect quantum cloning. 

https://technion.zoom.us/j/98421715812