Talk on Tuesday Jul 12, 2022 at 12:00 Place: Zoom Seminar Title: Quantum associative memory with a single driven-dissipative non-linear oscillator Speaker: Adrià Labay Mora, IFISC Abstract: <p>Topic: MdM Quantum Meeting</p> <p>Place: IFISC Seminar Room / Zoom</p> <p>Join Zoom Meeting<br /> https://uibuniversitat.zoom.us/j/95008734687</p>; <p>Abstract: Algorithms for associative memory typically rely on a network of many connected units. The prototypical example is the Hopfield model, whose generalizations to the quantum realm are mainly based on open quantum Ising models. We propose a realization of associative memory with a single driven-dissipative quantum oscillator exploiting its infinite degrees of freedom in phase space. The model can improve the storage capacity of discrete neuron-based systems in a large regime and we prove successful state discrimination between n coherent states, which represent the stored patterns of the system. These can be tuned continuously by modifying the driving strength, constituting a modified learning rule. We show that the associative-memory capacity is inherently related to the existence of a spectral gap in the Liouvillian superoperator, which results in a large timescale separation in the dynamics corresponding to a metastable phase.</p> Url event:https://ifisc.uib-csic.es/en/events/seminars/quantum-associative-memory-with...