Skip to main content

Questions tagged [mirror-symmetry]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0 votes
2 answers
54 views

What exactly happens to a light ray that is incident on the vertex of 2 mirrors inclined at some angle

So the question I had was that if we have two mirrors as shown in the diagram, what exactly occurs to the light ray that is incident on the vertex of the mirror? If we would like to construct the ...
Saketh V's user avatar
0 votes
0 answers
11 views

Can a real object also be considered as a real image if the direction of rays were to be reversed?

I came across the concept in a book wherein a real object is classified as a body that emits diverging beams of light; whereas the virtual objects are a point or a collection of point where the light ...
Atul Kashyap's user avatar
6 votes
0 answers
97 views

Is there an exact correspondence between Seiberg-Witten theory and mirror symmetry?

Seiberg-Witten solution gives an algebraic geometrical description of the quantum moduli of 4d $\mathcal{N}=2 $ SUSY gauge theory. However, the solution seems purely constructive and does not enjoy ...
Yankun Ma's user avatar
  • 141
0 votes
1 answer
38 views

Plain mirror reflection confusion

Can anybody help me reconcile my understanding of plain mirror reflection with what is said in this video? instagram video My understanding is that image size is always the same as object size but in ...
greenplasticdave's user avatar
1 vote
0 answers
76 views

The Z manifold and the corresponding Gepner and LG models

Let $\mathscr{T}$ be a product of three tori $\mathscr{T}_1 \times \mathscr{T}_2 \times \mathscr{T}_3$ with each torus formed by making the identifications $z_i \simeq z_i+1 \simeq z_i + \omega^{1/2}, ...
Walterfield's user avatar
1 vote
1 answer
86 views

The mirror of a rigid Calabi-Yau manifold

In various papers, I have seen descriptions that a rigid Calabi-Yau manifold has its mirror as a Landau-Ginzburg model. Why do experts think this way? Any comment welcome ! Thank you. Edit: In ...
Walterfield's user avatar
1 vote
0 answers
163 views

How spin orbit coupling breaks mirror symmetry?

I have been studying in several research papers with statement that spin orbit coupling breaks the all three mirror symmetry in cubic crystals when the magnetization direction is along the (110) ...
UJM's user avatar
  • 163
1 vote
1 answer
110 views

A question about the Dirac operator and zero modes in the book "Mirror Symmetry" by Clay Institute

I have a question about the book "Mirror Symmetry" p.296~298. Using the notations there, the Dirac operator and its conjugate are denoted as $D_z$ and $D_{\overline{z}}$. In p.297, the book ...
Keith's user avatar
  • 1,619
3 votes
2 answers
243 views

Can speed of image in mirror exceed the speed of light?

Suppose I'm moving toward the mirror at the speed of v, then relative speed btw me and mirror would be v. And I thought that we can think like there exist world that is the same as our world inside ...
Junmin Lee's user avatar
-1 votes
3 answers
549 views

The mathematical solution for the formation of infinite images in parallel mirrors is incorrect?

Textbooks and websites say that parallel mirrors form a $0^\circ$ angle between them and that is why the number of images formed is $(360^\circ/0)$ or infinite.   But I challenge this. There are two ...
SK-the-Learner's user avatar
0 votes
0 answers
27 views

Should I canculate the instantaneous velocity of average velocity for the question?

A man running at a speed 5m/s is viewed in the side mirror of radius of curvature R=2m of a stationary car. Calculate the speed of image when the man is at a distance of 9m from the mirror.
EDAGT's user avatar
  • 31
4 votes
2 answers
99 views

How do virtual images make any sense?

If the light meets behind the mirror, without really meeting, how is it even supposed to be interpreted. If two light rays never meet because they are diverging but they meet behind the mirror-which ...
Vishwa Mithra Tatta's user avatar
1 vote
0 answers
270 views

What would it look like inside a spherical mirrored room?

What would it look like if you were inside a perfectly spherical "room" that was completely mirrored (seamless) with a small, single source of light? Previously I'd wondered/theorized about ...
ashleedawg's user avatar
0 votes
1 answer
72 views

Incongruence in virtual image position on a convex parabolic mirror

I'm pretty new to the subject of geometric optics so forgive me if what I'm asking has a trivial explanation. I was trying to find the position of the virtual image of a point object on a convex ...
Edoardo Serra's user avatar
1 vote
1 answer
267 views

What can be used to change the direction of the laser beam? [closed]

Let's say we have a laser beam coming from a source called X, we would like to change its direction so that it would hit directly on the object that we have. What would be the possible solutions?
MrsDalloway's user avatar
1 vote
0 answers
49 views

When should we draw Mirror Extension to show Line of Symmetry

In the attached image, the mirror extension is drawn to show the line of symmetry to solve this question. My doubt is that under which condition, we should draw the line of symmetry.
Pokemon's user avatar
  • 13
0 votes
1 answer
97 views

Thought experiment on plane mirrors

I was just doing this thought experiment: Consider a well illuminated cubical room with all its inner six faces as mirrors. Now we place an insect inside the cube and it starts moving on the floor of ...
Dhruv Deshmukh's user avatar
1 vote
0 answers
91 views

Is this a correct non-technical description of mirror symmetry for Calabi-Yau manifolds arising from string theory?

In string theory there are physical reasons why the space we live in must locally be the product of Minkowski space with a Calabi-Yau manifold. The general theory doesn't say which Calabi-Yau manifold....
doetoe's user avatar
  • 9,294
0 votes
2 answers
58 views

What would I see if I locate myself in one of the focus of an ellipsoid whose surface is mirrored? [closed]

Imaging a 3D ellipsoid whose surface is completely mirrored. According to the optical laws of the ellipsoid, all the rays that start in one of the focus, end up forming an image on the other. I was ...
Juanjo's user avatar
  • 900
2 votes
0 answers
267 views

Mirror Symmetry and Ads/CFT

As far as I know, mirror symmetry has its origins in the Kaluza-Klein idea where the extra dimensions of spacetime are "curled up" or "compactified" into a Calabi-Yau manifold, which is why we see ...
Anton Hilado's user avatar