Linked Questions
34 questions linked to/from Is spacetime discrete or continuous?
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What things in our universe can be considered uncountable? [closed]
I am taking a course in mathematics that covers countability. The trick with the uncountability of the real line is that no matter how many times you divide up an interval, there would still be a real ...
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Is space-time a special form of energy?
I know space-time can be influenced by matter and energy, so it must be somehow mingled in with the mix of it all, but does space-time have a fundamental particle? Can we make a little bit of space-...
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Are length contractions limited by Planck length?
While we are getting closer to speed of light our length in the direction of the movement is according to Lorentz transformation getting shorter. But we can not (even theoretically) consider length ...
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Why is it more convenient to consider spacetime as a continuum?
I often find that phisicists and cosmologists make use of Planck's units. I have read propositions that sound like
"...at the level of Planck's units many law of physics break down"
"......
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"Before" the Big Bang was the Universe really compressed into a mathematical point? [duplicate]
A couple of weeks ago a teacher of mine (I'm taking mathematics) was giving a final inspiring lecture about how fundamental Math is to every possible universe. During the lecture though, he said that ...
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Can universal continuity be experimentally falsified?
It is an unresolved question whether the universe is discrete or continuous in its intricate quantum level structure.
See for example:
Is the universe finite and discrete?
How could spacetime become ...
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Is the space of possible positions of a particle in QM discrete?
I recently updated my understanding about quantum mechanics from popular science level to basic undergraduate level.
What surprised me is that for the quantum state of a particle, the wave function ...
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Surreal numbers and "zig-zag" shapes [closed]
This question has been reworded.
Is there an experiment which can distinguish between mathematical models of physical space based on real numbers and models based on other types of numbers e.g. ...
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Will an eventual discreteness of spacetime have consequences in the light of Noether's theorem?
No doubt Noether's theorem holds for the symmetry of translations in space and time. But what if we zoom in on very small lengths and times, and spacetime maybe becomes discrete? Will this have ...
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What does "continuous spacetime" mean?
I often encounter discussions, such as seen here, about whether spacetime is discrete or continuous. However, I am only familiar with continuity as being a property of functions. I saw this question ...
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Can a particle in superposition act as x*(energy?)
I can't find an answer anywhere - I even asked my physics teacher, he hasn't a clue. Is superposition an illusion, or can a particle literally act as an $x$ number of particles?
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Why is continuous space-time necessary for conservation laws?
I'm aware of Noether's theorem and symmetries leading to conserved quantities.
Excuse me if this is a straightforward result in the underlying math but as a newb to the math, I want to ask, are ...
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Space and time quanta? [closed]
Is there a possibility the space and the time are not continuous, but rather, quantified (only some positions in the space exist, and some instants in the arrow of time) ?
Hopes my question is clear.
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Implications of quantized spacetime on conservation of angular momentum
These two related questions cover the potential effects of quantized spacetime:
Does the Planck scale imply that spacetime is discrete?
Is spacetime discrete or continuous?
This question extends ...
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Minimal Requirements for Space and Time
I read recently that to consider the Planck length of less than 1.6 x 10 exp -34 meters the smallest unit that can manifest 4 coordinate space time to be incorrect in its interpretation. The reason ...
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