Knowledge Tree
quantum state
Also known as: quantum state, quantum states
Facts (17)
Sources
Quantum Approaches to Consciousness plato.stanford.edu Nov 30, 2004 6 facts
referenceIn his 1955 monograph on the mathematical foundations of quantum mechanics, John von Neumann introduced the projection postulate as a mathematical tool to describe measurement as a discontinuous, non-causal, instantaneous, and irreversible transition of a quantum state to an eigenstate.
claimThe Penrose-Hameroff hypothesis assumes that quantum states are coherent superpositions of tubulin states extending over many neurons, and their simultaneous gravitation-induced collapse constitutes an elementary act of consciousness.
claimMax Tegmark (2000) criticized the possibility that quantum states can survive long enough in the thermal environment of the brain to be relevant for consciousness.
referenceRoger Penrose proposed relating elementary conscious acts to gravitation-induced reductions of quantum states, a theory that requires a future framework of quantum gravity.
claimIn quantum theory, the transition of a quantum state to an eigenstate is known as the collapse or reduction of the wavefunction, which is distinct from the continuous, unitary, and reversible evolution of a system described by the Schrödinger equation.
claimThe focus on microtubules in the Penrose-Hameroff hypothesis is motivated by the need for protected locations where quantum states can persist long enough to undergo gravitational reduction before interacting with the warm, wet environment of the brain.
Quantum Mechanics And Consciousness: The Physics Of Mind quantumzeitgeist.com Apr 17, 2025 4 facts
claimSome researchers utilize random number generators to test the influence of human intention on quantum states, though these studies face methodological issues and statistical concerns.
claimQuantum coherence is highly sensitive to environmental interference, a process known as decoherence, which poses a significant challenge to the plausibility of quantum states surviving in the brain's warm and wet environment.
claimRoger Penrose and Stuart Hameroff proposed the Orchestrated Objective Reduction (Orch OR) hypothesis, which posits that microtubules in brain neurons maintain quantum states that affect consciousness.
claimThe Schrödinger’s cat thought experiment illustrates the quantum paradox of superposition, demonstrating how quantum states can exist in multiple states simultaneously until they are observed.
Consciousness-Induced Quantum State Reduction - Nova Spivack novaspivack.com Jun 2, 2025 4 facts
claimIt is hypothesized that the probability of a quantum system collapsing to a particular eigenstate |i
angle is proportional to the volume or measure of the region in the combined consciousness-quantum manifold M_{ ext{total}} that corresponds to that outcome, weighted by factors related to the initial quantum state and the observer's consciousness state.
claimIt is hypothesized that a high geometric complexity of the observer’s consciousness field creates a configuration in the combined information space that energetically or dynamically favors definite quantum states over superpositions for the observed system.
formulaThe collapse timescale for quantum states is defined as τ_collapse = ħ / (Ω_observer · E_superposition), which is dependent on the complexity of the observer's consciousness.
claimHistorically, von Neumann (1932), Wigner (1961), and Stapp (2007) proposed that the conscious act of observation is what actualizes a quantum state, though these proposals have faced criticism for lacking mathematical precision, clear physical mechanisms, or uniquely testable predictions.
Quantum Models of Consciousness from a Quantum Information ... arxiv.org Dec 20, 2024 1 fact
claimThe Diósi–Penrose objective reduction theory proposes that the collapse of a quantum state is not solely caused by environmental interactions, but is inherently linked to the fundamental influence of space-time on quantum superposition.
Panpsychism (Stanford Encyclopedia of Philosophy/Fall 2025 Edition) plato.stanford.edu May 23, 2001 1 fact
claimDamian Aleksiev's 'Missing Entities Problem' (2021) questions whether phenomena such as spacetime, a high-dimensional quantum state, and timeless entities in quantum gravity theories can be intelligibly grounded in facts about consciousness.
Quantum Approaches to Consciousness plato.stanford.edu Nov 30, 2004 1 fact
claimRoger Penrose's theory relating conscious acts to gravitation-induced reductions of quantum states requires a future theory of quantum gravity that has not yet been developed.