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Cambridge University Press eBooks

Physics without time

Carlo Rovelli C, Francesca Vidotto

Published Nov 13, 2014• 0 citations
Publisher
DOI
10.1017/cbo9781107706910.004

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The "Measurement Problem" in Quantum Physics Can be Partly Resolved with Analysis of Relatedness Between Space-Time, Physical Time and Psychological Time

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Clocks are systems for measuring frequency, velocity, duration and numerical order ntttt.......,, 210 of physical events. Time t obtained with clocks is not a forth dimension 4X of space, time t is only a component of tciX ∗∗=4. This view of clock/time as a measuring system sees physical phenomena running exclusively in space and not in time. This view is supported with several experiments which confirm that time t of physical event can be zero. Time is not part of space; time is run of clocks in space. Past, present and future exist as a psychological time in the mind only not in the universe. We experience motion i.e. change in the space through the frame of psychological time. We “project ” linear psychological time “past-present-future ” into the space, however it is not there. Observer who distinguishes between space-time, physical time and psychological time is aware that in quantum measurement he only measures physical events in space and not in time. Clock/time is merely a measuring device. With this understanding observer’s observation, measurement and experience of quantum phenomena are closer to their real nature. Stream of numerical order of quantum phenomena ntttt.......,, 210 runs in space only and not in time. Stream of quantum phenomena has no duration on its own. Duration is result of measurement.

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What is Time

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Physics is studying a system based on the information available about it. There are two approaches to physics, deterministic and the nondeterministic. The deterministic approaches assume everything is known about the system. Since everything about the system is almost never known, nondeterministic approaches such as statistical physics and quantum physics are of high importance. After a tour through informational interpretation of quantum physics and required mathematical tools, we go into the notion of time. We address the problem of time and a cluster of problems around measurement in quantum mechanics. I present a new approach to interpreting time in terms of information changes. Time will emerge from the non-commutativity of quantum theory. In the third section we review information thermodynamics and later derive some relations between our notion of time and the thermal time.

•Apr 3, 2017•1 citation
Clocks are systems for measuring frequency, velocity, duration and numerical order ntttt.......,, 210 of physical events. Time t obtained with clocks is not a forth dimension 4X of space, time t is only a component of tciX ∗∗=4. This view of clock/time as a measuring system sees physical phenomena running exclusively in space and not in time. This view is supported with several experiments which confirm that time t of physical event can be zero. Time is not part of space; time is run of clocks in space. Past, present and future exist as a psychological time in the mind only not in the universe. We experience motion i.e. change in the space through the frame of psychological time. We “project ” linear psychological time “past-present-future ” into the space, however it is not there. Observer who distinguishes between space-time, physical time and psychological time is aware that in quantum measurement he only measures physical events in space and not in time. Clock/time is merely a measuring device. With this understanding observer’s observation, measurement and experience of quantum phenomena are closer to their real nature. Stream of numerical order of quantum phenomena ntttt.......,, 210 runs in space only and not in time. Stream of quantum phenomena has no duration on its own. Duration is result of measurement.
Time has been in increasing trouble in physics. Skeptics are on the rise since many among its former supporters are nowadays acknowledging the notion that time might be unreal or just a local variable. In the Quanto-Geometric Theory, we have proposed new physics and novel solutions in response to the many conundrums facing the field which radically proscribe time in the metric of the physical realms. What is difficult to construct in a program of timeless physics is an interpretation of the evolution of time-independent dynamic systems at all scales. While we already know what that looks like for the quantum world with E. Scrodinger’s Quantum Mechanics, a granular dynamic description of time-independent physics in the macrocosm has probably yet to be achieved. In this proposal, we undertake to substantially muster up a time-free description of motion in dynamic systems from momentum to entanglement, in physics at all scales.
Physics is studying a system based on the information available about it. There are two approaches to physics, deterministic and the nondeterministic. The deterministic approaches assume everything is known about the system. Since everything about the system is almost never known, nondeterministic approaches such as statistical physics and quantum physics are of high importance. After a tour through informational interpretation of quantum physics and required mathematical tools, we go into the notion of time. We address the problem of time and a cluster of problems around measurement in quantum mechanics. I present a new approach to interpreting time in terms of information changes. Time will emerge from the non-commutativity of quantum theory. In the third section we review information thermodynamics and later derive some relations between our notion of time and the thermal time.