Robert Cordery
@robphysics.bsky.social
I am a practicing Catholic theoretical physicist retired from 30 years in Industrial R&D. I am now an Adjunct Physics Prof. at Fairfield University. My interests are statistical physics, renormalization group, and grandchildren.
I’m just showing how unicodeit.net works here for LaTeX to unicode. It won’t do arbitrary LaTeX, but can make math look nicer:
iℏ∂Ψ∂t=−(ℏ²/(2m))∂²Ψ/∂ x²+ VΨ
iℏ∂Ψ∂t=−(ℏ²/(2m))∂²Ψ/∂ x²+ VΨ
unicodeit.net
March 28, 2025 at 11:57 AM
I’m just showing how unicodeit.net works here for LaTeX to unicode. It won’t do arbitrary LaTeX, but can make math look nicer:
iℏ∂Ψ∂t=−(ℏ²/(2m))∂²Ψ/∂ x²+ VΨ
iℏ∂Ψ∂t=−(ℏ²/(2m))∂²Ψ/∂ x²+ VΨ
I said physics and math can explain how the universe works but not why it is here. He answered “Oh, get your own dirt!”
In that old tale a biologist told God that she could create life. She picked up some dirt and God said “Get your own dirt!”
In that old tale a biologist told God that she could create life. She picked up some dirt and God said “Get your own dirt!”
March 23, 2025 at 7:11 PM
I said physics and math can explain how the universe works but not why it is here. He answered “Oh, get your own dirt!”
In that old tale a biologist told God that she could create life. She picked up some dirt and God said “Get your own dirt!”
In that old tale a biologist told God that she could create life. She picked up some dirt and God said “Get your own dirt!”
⚛️Thanks for this. I never saw how you can try to understand the universe and not feel awe.
I was at a mathematical security conference and having dinner with a Hasidic Jewish mathematician. He asked sarcastically how I could be a physicist and religious.
I was at a mathematical security conference and having dinner with a Hasidic Jewish mathematician. He asked sarcastically how I could be a physicist and religious.
March 23, 2025 at 7:06 PM
⚛️Thanks for this. I never saw how you can try to understand the universe and not feel awe.
I was at a mathematical security conference and having dinner with a Hasidic Jewish mathematician. He asked sarcastically how I could be a physicist and religious.
I was at a mathematical security conference and having dinner with a Hasidic Jewish mathematician. He asked sarcastically how I could be a physicist and religious.
Time to forget theory and cut a small practice piece (or more than one). 😳
March 23, 2025 at 6:52 PM
Time to forget theory and cut a small practice piece (or more than one). 😳
As a retired physicist thinking about the strange spaces implied by quantum + gravity, I would really appreciate a good thesaurus between the physics and mathematics terminology.
March 16, 2025 at 8:17 PM
As a retired physicist thinking about the strange spaces implied by quantum + gravity, I would really appreciate a good thesaurus between the physics and mathematics terminology.
Diana Cowern (Physics Girl) has a nice video showing and explaining the lens. youtu.be/33UMkPe93Ko?...
World’s Largest Camera Lens
YouTube video by Physics Girl
youtu.be
March 12, 2025 at 9:44 PM
Diana Cowern (Physics Girl) has a nice video showing and explaining the lens. youtu.be/33UMkPe93Ko?...
Diana Cowern (Physics Girl) has a video showing and explaining the objective lens. youtu.be/33UMkPe93Ko?...
World’s Largest Camera Lens
YouTube video by Physics Girl
youtu.be
March 12, 2025 at 9:42 PM
Diana Cowern (Physics Girl) has a video showing and explaining the objective lens. youtu.be/33UMkPe93Ko?...
⚛️ One of my favorite moments was after a talk by Richard Feynman at Northeastern U about a toy model for confinement and strong coupling. I told him that his model was equivalent to the high T Ising expansion on a lattice wth coordination number 3. He looked surprised and agreed!😁
February 28, 2025 at 4:48 PM
⚛️ One of my favorite moments was after a talk by Richard Feynman at Northeastern U about a toy model for confinement and strong coupling. I told him that his model was equivalent to the high T Ising expansion on a lattice wth coordination number 3. He looked surprised and agreed!😁
This equilibrium polymerization model, with a choice for the energy of crossing loops, is the high temperature expansion of the Ising model. The experimental specific heat of liquid sulfur fits the Ising critical exponents and ratios of the amplitude above and below Tc. doi.org/10.1103/Phys...
Equilibrium Polymerization as an Ising Model
A lattice model for equilibrium polymerization which allows for loop polymers is presented with critical behavior described by $n=1$, rather than $n\ensuremath{\rightarrow}0$ predicted by the theory o...
doi.org
February 28, 2025 at 4:43 PM
This equilibrium polymerization model, with a choice for the energy of crossing loops, is the high temperature expansion of the Ising model. The experimental specific heat of liquid sulfur fits the Ising critical exponents and ratios of the amplitude above and below Tc. doi.org/10.1103/Phys...
A simple lattice stat. mech. model that exhibits an equilibrium polymerization transition has unbroken loops of sulfur chains placed on the nearest neighbor edges of a lattice. Edges have either 0 or 1 chains. There is an energy cost of putting a chain on an edge and for chains crossing.
February 28, 2025 at 4:37 PM
A simple lattice stat. mech. model that exhibits an equilibrium polymerization transition has unbroken loops of sulfur chains placed on the nearest neighbor edges of a lattice. Edges have either 0 or 1 chains. There is an energy cost of putting a chain on an edge and for chains crossing.
Sushi burrito sounds like another Toronto entangled quantum state. When I was at UofT we liked a similar mixture: Ginsberg & Wong restaurant - Jewish deli and Chinese.
December 22, 2024 at 1:19 AM
Sushi burrito sounds like another Toronto entangled quantum state. When I was at UofT we liked a similar mixture: Ginsberg & Wong restaurant - Jewish deli and Chinese.
Please add me: Adjunct in Fairfield University physics department scholar.google.com/citations?vi...
Profiles
scholar.google.com
October 11, 2024 at 4:36 AM
Please add me: Adjunct in Fairfield University physics department scholar.google.com/citations?vi...