Information storage capacity of discrete spin systems

Information storage capacity of discrete spin systems

What is the limit of information storage capacity of discrete spin systems? To answer this question, we study classical error-correcting codes which can be physically realized as the energy ground space of gapped local Hamiltonians. For discrete spin systems on a D-dimensional lattice governed by local frustration-free Hamiltonians, the following bound is known to hold; kd 1/D ≤ O(n) where k is...

Information Storage Capacity

The storage of information in biological memory relies on changes in neuronal circuits, termed plasticity. Synaptic contributions to plasticity, which are an important component, may be divided into changes in existing synapses, and changes in interneuronal connectivity through formation and elimination of synapses. Interneuronal connectivity changes may be further divided into contributions as...

Information storage capacity of connectionist systems : the linear associator

Quantum information storage and state transfer based on spin systems

The idea of quantum state storage is generalized to describe the coherent transfer of quantum information through a coherent data bus. In this universal framework, we comprehensively review our recent systematical investigations to explore the possibility of implementing the physical processes of quantum information storage and state transfer by using quantum spin systems, which may be an isotr...

Shannon Information Capacity of Discrete Synapses

X iv :0 80 3. 19 23 v1 [ qbi o. N C ] 1 3 M ar 2 00 8 Shannon Information Capa ity of Dis rete Synapses Adam B. Barrett and M.C.W. van Rossum Institute for Adaptive and Neural Computation University of Edinburgh, 5 Forrest Hill Edinburgh EH1 2QL, UK There is eviden e that biologi al synapses have only a xed number of dis rete weight states. Memory storage with su h synapses behaves quite di ere...