Title: Whitehead, James, and Quantum Physics
1Whitehead, James, and Quantum Physics
- Whiteheads Process Ontology as a Framework for a
Heisenberg/James/von Neumann Conception of Nature
and of Human Nature
2 Incorporating consciousness into physics.
- Whiteheads Process Conception of Nature allows
consciousness to be injected into physical
theory. - My plan is to (1), identify the key elements of
Whiteheads ontology (2), put them coherently
together (3), do the same for quantum theory
(4) amalgamate the two conceptions into a single
theory that is better defined than either one
alone and finally (5), to give a simple but
important application. - Ambiguities in either theory alone are resolved
by requiring the two theories to reduce
coherently to one. -
-
3Whiteheads First Principle The World is Built
Out Of Actual Entities!
- Actual entities---also termed actual
occasions, are the final real things of which
the world is made. (PR, p.18) - The final facts are, all alike, actual entities,
and these actual entities are drops of
experience, complex and interdependent. (p.18)
4Whitehead accepts Jamess claim about the
droplike (atomic/indivisible) character of
experience
- Either your experience is of no content, of no
change, or it is of a perceptible amount of
content or change. Your acquaintance with reality
grows literally by buds or drops of perception.
Intellectually and on reflection you can divide
them into components, but as immediately given
they come totally or not at all. (Wm. James,
PoP,Vol 1, p. 68)
5 Thought is Itself the Thinker
- If the passing thought be the directly verifiable
existent, which no school has hitherto doubted it
to be, then that thought is itself the thinker,
and psychology need not look beyond. (PoP,Vol 1,
p.401) - Thus the actual entities are the drops of
experience themselves, not the conscious
thinkers that know them, - Your awareness of your self must be an aspect
of your thoughts there is no need for,
additionally, a persisting conscious self
standing behind your thoughts. - Your stream of consciousness consists of ideas
clinging together---whence do they get their
fantastic laws of clinging? (Vol 1, p.3)
6A Basic Whiteheadian Distinction Continuous
Potentialities versus Atomic Actualities
- continuity concerns what is potential,
- whereas
- actuality is incurably atomic.
- (PR, p.61)
7Actual Entities Decide Things
- Actual entities make real what was
antecedently merely potential. (p.72) - every decision is referred to one or more actual
entitiesActuality is decision amid
potentiality. (p. 43). - Actual entities are the only reasons. (p.24)
8 Each (Temporal) Actual Entity is associated
with a Region of Space.
- every actual entity in the temporal world is to
be credited with a spatial volume for its
perspective standpoint... (p.68)
9The Atomization of Space-Time
- The actual entities atomize the extensive
continuum. This space-time continuum is in
itself merely potentiality for division. p.67 - The contemporary world is in fact divided and
atomic, being a multiplicity of definite actual
entities. These contemporary actual entities are
divided from each other, and are not themselves
divisible into other contemporary actual
entities p. 62
10Growing Actuality Is Created in a Growing Actual
Space-Time
- Whiteheads actuality consists of a growing
sequence of actual entities. - The basic process of nature creates an atomized
actual space-time from a prior continuous
potential space-time. - Natures process assigns a separate space-time
region to each actual entity. - Natures process fills up, step-by-step, the
space-time region lying in the past of the
advancing sequence of space-like surface now.
11 Time
Open Future
Open Future
Fixed Past
12Receptacle versus Relational Conception of
Space-Time
- Newtons receptacle space and time exists even
if nothing is in it. - Leibnizs relational view. Space-time pertains to
relations among actually existing entities Empty
space is a nonsensical idea. - Whitehead Atomized actual space-time is occupied
by actual atomic (indivisible) entities, and is
created out of continuous potentiality for
space-time
13Contrast with the Growing Past in
Non-Relativistic Physics
- In non-relativistic physics the growing past
lies behind an advancing (into the future)
sequence of constant-time instants now.
14Non-Relativistic Instants Now
Open Future
Open Future
n3
n2
n1
n
Fixed Past
15From Von Neumann NRQT to Tomonaga-Schwinger RQFT.
- The NR quantum state ?(t)??(s)
- t specifies a continuous three-dimensional
surface in the four-dimensional space-time
continuum, with all spatial points lying at the
same time t. - s specifies a continuous three-dimensional
surface in the four-dimensional space-time
continuum, with every point on the surface
spacelike-like separated from every other point.
16 Time
Open Future
Open Future
Fixed Past
17Objective Potentia and Subjective Knowledge
in Quantum Theory
- Heisenberg The probability function combines
objective and subjective elements. It contains
statements about possibilities or better
tendencies (potentia in Aristotelian
philosophy) and these are completely
objective,and it contains statements about our
knowledge of the system, which of course are
subjective in so far as they may be different for
different observers. (PP,p.53)
18Transition from Potentiality to Actuality in
Quantum Mechanics
- Heisenberg the transition from the possible
to the actual takes place during the act of
observation. - Heisenberg The observation itself changes the
probability function discontinuously it selects
of all possible events the actual one that has
taken place. Since through the observation our
knowledge of the system has changed
discontinuously, its mathematical representation
has also undergone the discontinuous change and
we may speak of a quantum jump (PP, p.54)
19 Time
Open Future
Open Future
Fixed Past
20Compatible with Einsteins (Special) Theory of
Relativity
- All predictions are independent of the sequential
ordering of space-like separated events. - No signal (controlled message) can be
transmitted faster than the velocity of light.
21Psycho-Physical Building Blocks
- In this Whiteheadian ontologicalization of
quantum theory, each quantum reduction event is
identified with a Whiteheadian actual
entity/occasion! - Each Whiteheadian actual occasion/entity has a
mental pole and a physical pole. - Each Heisenberg quantum reduction event specifies
an increment in (experienced) knowledge, and an
associated reduction of the physical state of the
universe to one compatible with the new state of
knowledge.
22Basic Ontology A Summary
- Objective/absolute actuality consist of a
sequence of psycho-physical quantum reduction
events, identified as Whiteheadian actual
entities/occasions. - These happenings combine to form/create a growing
past of fixed and settled facts. - Each fact is associated with (1), a fixed
space-time region (2), the actualization of some
subset of the potentialities created by the set
of prior events (3), a drop of experience that
constitutes new knowledge and (4), the
eradication of all of the potentialities that
conflict with the new knowledge.
23Continuity and Causation in Classical Physics
- Classical physics postulates a continuous process
satisfying causal closure of the physical the
physical description, by itself, provides for a
causally complete deterministic account. No
effects of mind or consciousness on the
physically described properties need be
introduced or acknowledged. - Thus, according to the classical
conceptualization, Mind/Consciousness is
redundant or epiphenomenal it adds no causal
input to the already complete causal structure.
24But Orthodox Quantum Theory has Two Causal Gaps.
- The determinations of two kinds of
under-determined decisions are needed to make
quantum theory work! - Free choices by conscious agents. Basically,
these are choices to act in a particular way with
an intent to elicit a specific conceived
experiential feedback. - These choices made by agents are not determined
within orthodox theory---either statistically or
otherwise. - But the intended feedback/outcome may or may not
actually occur. - The quantum state of the universe just prior to
the agents choice determines the probability for
the intended feedback to occur. It does not
determine whether---or not---that feedback will
occur.
25Filling the Causal Gap.
- Orthodox Quantum Theory does not determine what
we decide to do. - These choices of actions are, within that theory,
free choices. - The Whitehead Quantum ontology provides a
rational conceptual framework for approaching
this basic issue that contemporary quantum theory
leaves unresolved How are our choices about how
we will act generated and how are they
implemented ?
26 Significance
- The mainstream neuroscience materialist
assumption is that any effect of mind is
causally reducible to the physically describable
aspects of nature. - This presumption neither demanded nor supported
by orthodox physical theory - Mind can in principle enter fundamentally into
brain dynamics in an essential and non-eliminable
way.
27Whiteheadian Process
- The many become one, and are increased by one.
(PR p.21) - The past actualities combine to determine a new
space-time standpoint (region) from which the
potentialities created by the past actualities
will be prehended (grasped). - The von Neumann/Tomonaga/Schwinger quantum state
restricted to that region represents the
physically describable potentialities available
to the associated entity. - But the effects of the mental poles of past
occasions can also intrude into the process.
28 Actual Occasions of the First Kind
- An Actual Occasion of the first kind chooses an
intended action it initiates an action that will
tend to produce an intended experiential
feedback. - It actualizes its neural correlate, which is a
template for action a macroscopic pattern of
physical (neurological) activity which, if
sustained for a sufficiently long time, will tend
to cause the intended feedback to occur. - Synchronous macroscopic gamma-band activity is
the prime candidate for a template for action.
29Actual Occasions of the Second Kind
- An Actual Occasion of the second kind specifies
which one of the mutually exclusive alternative
possible feedbacks actually occurs. - Occasions of the first and second kind have been
called, respectively, choices on the part of the
experimenter and choices on the part of nature
(Bohr, !958, p.51)
30Simplest Application
- Suppose the idea I shall now raise my arm
occurs, and this experience is colored by a
strong feeling of the positive value of that
contemplated action. - Suppose this experience tends to produce a
successor in which the core idea I shall now
raise my arm is colored with a feeling of
effort to raise now my arm
31Simplest Application Continued
- Suppose that experience causes, by virtue of the
fantastic laws of clinging an immediate
(within a few milliseconds) repetition of that
experience, and that this causes another
immediate repetition, and so on. - This rapid sequence of actualizations of the
associated template for action will tend---by
virtue of the so-called quantum Zeno effect---to
hold that template for action in place for longer
than would otherwise be the case.
32Simplest Application Continued
- This persisting excitation of the template for
action will tend to cause your arm to rise. - Every cause connection used here is strictly
compatible with the orthodox laws of physics a
certain causal gap in that theory has merely been
filled in a particular way. - The quantum Zeno effect is itself a decoherence
effect, and it is not diminished by environmental
decoherence. - Thus a simple physical effect of a conscious
intent and effort is explained within a causal
framework that amalgamates orthodox quantum
theory and Whiteheadian process.
33Benefits
- Actual scientific practice has three components
(1), our freedom to act upon the world in ways of
our choosing (2), the experienced feedbacks from
these actions and (3) a mathematical framework
used to explain the connections between the first
two. - The proposed ontology treats the three components
as bona fide aspects of a psycho-physical whole,
rather than trying to force the theory into an
essentially classical-physics-type
consciousness-free mold. -
34Benefits Continued
- In dealing with empirically occurring
correlations between our choices of how we will
act and the experienced consequences of these
acts, it is difficult and awkward to use a theory
that denies the freedom of these choices, and
that cannot explain the occurrence of any
experience of any kind. - Contemporary physical theory is not unnaturally
constrained in the way that classical physical
theory was, and it hobbles the development of
science to shackle it in the old ways.