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Quantum physics
Quantum psychology
Schrödinger cat
Quantum mechanics

Introduction to...
Mathematical formulation of...

Fundamental concepts

Decoherence · Interference
Uncertainty · Exclusion
Transformation theory
Ehrenfest theorem · Measurement


Double-slit experiment
Davisson-Germer experiment
Stern–Gerlach experiment
EPR paradox · Schrodinger's Cat


Schrödinger equation
Pauli equation
Klein-Gordon equation
Dirac equation

Advanced theories

Quantum field theory
Quantum electrodynamics
Quantum chromodynamics
Quantum gravity
Feynman diagram


Copenhagen · Quantum logic
Hidden variables · Transactional
Many-worlds · Many-minds · Ensemble
Consistent histories · Relational
Consciousness causes collapse
Orchestrated objective reduction


Bohm ·

In neuroscience, quantum brain dynamics (QBD) is a hypothesis to explain the function of the brain within the framework of quantum field theory. Although there are many blank areas in understanding the brain dynamics and especially how it gives rise to conscious experience it should be noted that quantum mechanics is only conisdered by some to be capable of explaining the enigma of consciousness. There is currently no experimental verification of this hypothesis. QBD is thus classified as protoscience.

Mari Jibu and Kunio Yasue (1995) were the first researchers that tried to popularize the quantum field theory of Nambu-Goldstone bosons as the one and only reliable quantum theory of fundamental macroscopic dynamics realized in the brain with which a deeper understanding of consciousness can be obtained. This hypothesis was originated by Ricciardi and Umezawa (1967) in a general framework of the spontaneous symmetry breaking formalism, and since then developed into a quantum field theoretical framework of brain functioning called quantum brain dynamics (Jibu and Yasue 1995) and that of general biological cell functioning called quantum biodynamics (Del Giudice et. al., 1986; 1988). There, Umezawa proposed a general theory of quanta of long-range coherent waves within and between brain cells, and showed a possible mechanism of memory storage and retrieval in terms of Nambu-Goldstone bosons characteristic to the spontaneous symmetry breaking formalism.

References Edit

  • Conte, E, Todarello, O, Federici, A, Vitiello, F, Lopane, M, Khrennikov, A, Zbilut JP (2007). Some remarks on an experiment suggesting quantum-like behavior of cognitive entities and formulation of an abstract quantum mechanical formalism to describe cognitive entity and its dynamics. Chaos, Solitons and Fractals 31: 1076-1088 [1]
  • Del Giudice E, Doglia S, Milani M, Vitiello G (1986). Electromagnetic field and spontaneous symmetry breaking in biological matter. Nucl. Phys. B 275: 185-199.
  • Del Giudice E, Preparata G, Vitiello G (1988). Water as a free electric dipole laser. Physical Review Letters 61: 1085-1088. Abstract
  • Georgiev DD, Glazebrook JF (2006). Dissipationless waves for information transfer in neurobiology - some implications. Informatica 30: 221-232. Free full text
  • Jibu M, Yasue K (1995). Quantum Brain Dynamics: An Introduction. John Benjamins, Amsterdam.
  • Jibu M, Yasue K (1997). What is mind? Quantum field theory of evanescent photons in brain as quantum theory of consciousness. Informatica 21: 471-490. Abstract
  • Ricciardi LM, Umezawa H (1967). Brain and physics of many-body problems. Kybernetik 4: 44-48.
  • Weiss V, Weiss H (2003). The golden mean as clock cycle of brain waves. Chaos, Solitons and Fractals 18: 643-652. Free full text

See also Edit

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