| Description |
Bose Condensation occurs in a variety of physical systems; from dense neutron stars where it happens supposedly at million degrees Kelvin to atomic traps with dilute condensed alkali gases at nanokelvin temperatures passing through liquid He4 and High temperature Superconductors. It has been suggested that this also happens in human brain. I would like to point out that our brain may well be in a coherent superfluid state, not necessarily Bose condensed. I will treat our mind that neurons encompass as an abstract Hilbert space -- it is an information space whose central function is gathering meaningful information and asking the organism to act on it. We postulate that a quantum of information is a bosonic quasiparticle that is created each time a neuron fires. Like any fundamental particle, the thought quanta must carry energy and momentum (a short video will be projected) . An operator S+, called self-operator will be defined to create such a quasiparticle. This S operator is nothing but our genetic identity. A phase coherent state of mind occurs whenever a macroscopic average <s> ≠ 0 appears. At this point a phase transition occurs from an incoherent to a coherent state. The driving force behind this phase transition is not temperature but neural connectivity. This is precisely the point where an I am emerges for each one of us! I is the Ginzburg- Landau order parameter of the cognitive field. Brain is an open system. Its basic physics and chemistry is characterised by dissipation and nonreversibility. This is why the sense of time present or passing is built into our consciousness. The Hamiltonian governing the dynamics can only be non-Hermitian. I will show the fundamental significance of such a Hamiltonian as far as our mind is concerned. I will also show how consciousness can be precisely defined as a response function, of the S -- operator to the world. What I am trying to develop is a simple language that would mean something to both physicists and neuroscientists. Introducing the concept of self at the very basement level (bottom up) seems to me unavoidable if we are to understand self-organisation behind the cognition phenomenon. |