cianfa72's latest activity
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cianfa72 replied to the thread Graduate Wavefunction in the context of quantum physics.Sorry, I'm not sure what that link refers to. Does the part in bold above refer to Hermite functions ? -
cianfa72 replied to the thread High School True static equilibrium and effects on time.Ok, so in the context of Newtonian physics let's pick the frame in which I am at rest. What if this isn't inertial? To do dynamic w.r.t...
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cianfa72 replied to the thread Graduate Wavefunction in the context of quantum physics.Apart from this, can we explicitly exhibit an Hilbert basis (i.e. a maximal orthonormal set) consisting of square integrable functions...
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cianfa72 replied to the thread Graduate Hopf fibration of 3-sphere.The idea could be "lift" one the two linked loops in R^3 along the fourth dimension to separate it from the other. Yes, move it along...
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@Hornbein Intuitively, in Euclidean 3 space, two non-intersecting closed loops are linked if they cannot be separated without...
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cianfa72 replied to the thread Graduate Hopf fibration of 3-sphere.Sorry, I've not idea for this.... :rolleyes:
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cianfa72 replied to the thread Graduate Hopf fibration of 3-sphere.Can you explain why they can always be separated in the "ambient" ##\mathbb R^4## ?
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cianfa72 replied to the thread Graduate Wavefunction in the context of quantum physics.I'm not sure whether what follows fits better in a math subforum. Take the Hilbert space of square integrable functions of one variable...
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cianfa72 replied to the thread High School True static equilibrium and effects on time.Ah ok, so here we are taking just a kinematic viewpoint/description, no dynamic is involved.
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cianfa72 replied to the thread High School True static equilibrium and effects on time.Yes, however the person who says "I'm stationary" must measure for themself zero proper acceleration.
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cianfa72 replied to the thread Graduate Wavefunction in the context of quantum physics.Yes, however to me this is a bit confusing. In your example, the particle (the quantum system) is in a quantum state in the relevant...
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cianfa72 posted the thread Graduate Wavefunction in the context of quantum physics in Quantum Physics.In the context of quantum physics the state of a quantum system is represented by a vector, say ##\ket \psi##, in the...
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cianfa72 replied to the thread High School True static equilibrium and effects on time.The notion of traveling along a straight line at constant velocity has different meaning depending on the "physics framework" used. The...
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cianfa72 reacted to fresh_42's post in the thread Undergrad What is the 4D Equivalent of a Möbius Strip or Klein Bottle? with
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a) It is Klein bottle, not klien. It is constructed as a quotient space ##\{[0,1]\times [0,1]\}/\sim ## where ##(0,y)\sim (1,y)## and... -
cianfa72 replied to the thread High School Why does a Wormhole not look like an hourglass?.I was trying to visualize ##\mathbb S^2 \times R## as a "block" extending across all 3D euclidean space with a spherical hole inside it...