Use this tag for questions seeking a single specific paper or a short, non-open-ended list of references, like "What paper first discovered X?", "Where can I find the original derivation of X?", or "What is the canonical source for X?" etc.
0
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0answers
15 views
3D interference visualisation software
We are searching for a software program that simply helps us to visualize in 3D the interference of planar waves of multiple sources (frequencies) and as sepctrum on a wall. Something like a well ...
11
votes
4answers
286 views
Where can I find the full derivation of Helfrich's shape equation for closed membranes?
I have approximately 10 papers that claim that, from the equation for shape energy:
$$ F = \frac{1}{2}k_c \int (c_1+c_2-c_0)^2 dA + \Delta p \int dV + \lambda \int dA$$
one can use "methods of ...
2
votes
1answer
51 views
English/German translation of Latin scientific texts in general, “Principia Generalia Theoriae Figurae Fluidorum in Statu Aequilibrii” in particular
I am trying to get my hands on an English or German translation of the seminal work by Gauss on fluid shapes in equilibrium: "Principia generalia Theoriae Figurae Fluidorum in statu Aequilibrii ...
6
votes
3answers
203 views
Origin of Ladder Operator methods
Ladder operators are found in various contexts (such as calculating the spectra of the harmonic oscillator and angular momentum) in almost all introductory Quantum Mechanics textbooks. And every book ...
0
votes
0answers
30 views
Why is planar geometry preferred to observe ordinary Hall effect?
In the Physics Today article by Avron et.al. "A Topological Look at the Quantum Hall Effect" Physics Today (2003) it is suggested that to observe ordinary Hall effect, planar geometry is preferred to ...
0
votes
0answers
65 views
Relativistic canonical transformation
What is relativistic canonical transformation? I need every piece of information about it.
Does anyone know a reference or an article about relativistic canonical transformation?
For example, in ...
0
votes
0answers
10 views
Electrical measurements on nanocale devices
Are there any references on protocols and techniques for electrical measurements on nanoscales devices and structures?
2
votes
0answers
13 views
Where does one find pair-correlation functions for various materials?
What is the canonical source for finding pair-correlation functions for atoms in various materials? I am interested in both numeric computations and experimental measurements (like might be obtained ...
0
votes
0answers
34 views
Quantum harmonic oscilator - book that does it all right [duplicate]
I am dealing with quantum harmonic oscillator.
In every single book or video i have checked out i can read how the mathematical technique for solving this Schrödinger equation:
$$
W\psi = - ...
2
votes
0answers
51 views
Helicity for Zero Rest Mass Field Equations
I'm trying to reconcile the usual definition of the helicity operator, namely
$$ h = \hat{p}.S$$
with the definition of a massless helicity $n$ field as a symmetric spinor field $\phi^{A\dots B}$ ...
1
vote
1answer
33 views
Name of a state with $d-1$ excitations, distributed uniformly among $n$ qudits
Is there a particular name for a quantum state of the form (up to the normalization):
$$\sum_{i_1+\ldots+i_n = d-1} |i_1\rangle |i_2\rangle \ldots |i_n\rangle$$
or was it studied is some papers?
...
9
votes
2answers
352 views
What is the current state of research in quantum gravity?
I was browsing through this and was wondering what progress in quantum gravity research has taken place since the (preprint) publication.
If anyone can provide some helpful feedback I would be ...
5
votes
2answers
273 views
English translation of Helmholtz' paper: “On the Physical Significance of the Principle of Least Action”
I am asking about an English translation of a Helmholtz paper:
Ueber die physikalische Bedeutung des Princips der kleinsten Wirkung. Journal für die reine und angewandte Mathematik (Crelle's ...
3
votes
4answers
147 views
Effects of surface roughness on specularity
Say you have a piece of glass, which looks specular if propery cut/polished. But if you sand the surface using say sand paper, it will look hazy and glossy. I'm wondering how much surface roughness ...
4
votes
0answers
117 views
Question about the HVZ theorem
In this paper1 the authors cite the HVZ theorem2 saying that it follows from the method used by M. Reed & B. Simon without modifications; I don't really understand this point.
Is there anyone who ...
1
vote
1answer
117 views
Demonstrating Quantum effects with home experiments using green diode laser [closed]
I would like to preform home experiments to demonstrate quantum effects to my kids. I need a list of experiments on Laser photons that could be easily conducted at home to demonstrate quantum ...
2
votes
4answers
247 views
Modeling incoming solar radiation
I want to write a model for estimating incoming solar radiation for a specific latitude on earth but I am struggling to find an appropriate source which shows the required equations for doing so. ...
4
votes
0answers
74 views
Electric potential of a spheroidal gaussian
I'm looking for results that compute the electrostatic potential due to a spheroidal gaussian distribution. Specifically, I'm looking for solutions of equations of the form
$$
...
2
votes
0answers
32 views
Literature value of forward-backward asymmetry on the Z resonance?
I did a Standard Model calculation and I want to compare my answer to a measured value.
Does anyone know the literature value for the forward-backward asymmetry $\frac{\sigma_F - \sigma_B}{\sigma_F + ...
1
vote
1answer
55 views
Classical second quantization paper by Jordan and Wigner - ref. request [closed]
I am looking for the following paper in electronic format (I can get it in hard copy from my university library).
P. Jordan and E. Wigner, Z. Phys. 47, 631 (1928)
Does anyone know how to find it?
3
votes
1answer
46 views
References on wave solutions in continuum mechanics [closed]
I am interested in literature on known wave solutions in continnum mechanics, precisely the following mechanical equation:
$$\rho\partial_t^2u_i = C_{ijkl}\nabla_j\nabla_ku_{l}$$
My interest is spread ...
2
votes
2answers
113 views
Where to find old papers, articles and preprints?
Question: How can I find physics papers, articles and preprints decades ago?
Description: The search of articles and papers is for the purpose of finding interesting phenomenon for a science project. ...
1
vote
1answer
131 views
A classically trivial quantum field theory of electromagnetism
Presumably there is a field theory of electromagnetism that classically gives trivial equations of motion, but when quantized shows interesting topological phenomena. I am talking about the Lagrangian ...
-4
votes
1answer
207 views
Is There a List of Physics Formulas? [closed]
I am looking for a list of simple physics formulas - like $F=ma$. Is there any website/book that is a list of such equations?
1
vote
1answer
169 views
What is the mathematical background needed for quantum physics? [duplicate]
I'm a computer scientist with a huge interest in mathematics. I have also recently started to develop some interest about quantum mechanics and quantum field theory. Assuming some knowledge in the ...
0
votes
0answers
51 views
Where to find probability density plots for all elements?
Does anyone know where I can find something similar to this, but for all elements?
I would love to find something with the same image quality.
Also, is there any software that can produce images ...
6
votes
0answers
64 views
Flat Space Limit of AdS/CFT is S-Matrix Theory
In an answer to this question, Ron Maimon said:
The flat-space limit of AdS/CFT boundary theory is the S-matrix theory
of a flat space theory, so the result was the same--- the "boundary"
...
1
vote
0answers
41 views
What name would you give to the method of approximating an arbitrary magnet with many smaller dipoles?
Let's say I had an arbitrarily shaped permanent magnet, with total magnetic moment $M_{0}$. Ways to calculate the magnetic field of this magnet include an analytic solution (if one exists), as well ...
0
votes
1answer
101 views
Depression of Water Surface by a Needle
Given a needle of mass $m$ modeled by a cylinder of length $l$ and radius $r$ placed on an infinitely large water surface, what is
The maximum depression in the water surface; and
The equation of ...
2
votes
1answer
82 views
Relativity exposition from the “naïve” viewpoint
A naïve observational viewpoint doesn't automatically try to correct for signal delays. In other words, the time co-ordinate is retarded.
For example:
In popular expositions of relativity you'll ...
4
votes
1answer
269 views
First Chern number, monoples and quantum Hall states
The first Chern number $\cal C$ is known to be related to various physical objects.
Gauge fields are known as connections of some principle bundles. In particular, principle $U(1)$ bundle is said to ...
0
votes
1answer
286 views
Lamb-Chaplygin dipole
There is an interesting issue of hydrodynamics: whirlpools.
I want to learn about the Lamb-Chaplygin dipole.
Lamb-Chaplygin dipole corresponds to a steady solution of the two dimensional Euler ...
5
votes
1answer
120 views
What is the first appearance of the MV (McLerran-Venugopalan) initial condition?
First a quick introduction for the unfamiliar: in saturation physics (my research field), a lot of theoretical work centers on the BK (Balitsky-Kovchegov) equation, which is a differential equation ...
3
votes
1answer
213 views
Klein-Gordon inner product
Studying the scalar field and Klein-Gordon equation in quantum field theory I came across this definition for the inner product in the space of the solutions of the K.G. equation:
$\langle \Phi_1 | ...
2
votes
1answer
209 views
Where to find the current positions and velocities of the planets?
I've written a program which simulates the motions of planets and other bodies. I'd like to run it on our own solar system, but to do so I need to know the current positions (preferably in ...
2
votes
2answers
232 views
Mobility in semiconductors
Good afternoon everybody.
I am reading on a book about semiconductor mobility. I have fully understood the definition, but I also noticed that often one talks about high or low mobility. My question ...
2
votes
1answer
54 views
What is the first paper to report observations of polaritons?
I am seeking references to the first articles regarding the observation of polaritons.
0
votes
0answers
38 views
Vlasov equation in Liddle and Lyth or Dodelson's book
I am concerned about equations 2, 5 and 6 on page 2 of arXiv:astro-ph/0606028.
The paper refers them to the book by Peebles which I don't have access to at this point.
I believe that these ...
2
votes
0answers
79 views
Phonon-polariton literature resources? [closed]
What is a good resource for studying phonon-polaritons?
1
vote
0answers
24 views
Dual methods in structure optimization
I am studying Structure Optimization, and the teacher took a few weeks to detail dual methods, but I don't get why it is useful.
From an optimization problem with ...
5
votes
1answer
376 views
Classical 3-body problem
There is a formulation of the classical 3-body Newtonian problem reducing this problem to 6 equations (e.g. http://www.3bproblem.blogspot.com). I would like to know where can I find a discussion or ...
0
votes
0answers
107 views
P-adic Numbers and Eternal Inflation
In October(??) 2011, Leonard Susskind gave a talk and with few other people wrote papers about p-adic numbers and measure problems in cosmology, see e.g. arXiv:1110.0496. Has there been any recent ...
1
vote
0answers
66 views
Geometric quantization of a hydrogen atom
I want to know how to quantize a hydrogen atom as an example of geometric quantization. Apparently there is a derivation in the book "Geometric Quantization in Action: Applications of Harmonic ...
1
vote
2answers
121 views
Stephen Hawking's theory of future backreaction
Several years ago, New Scientist featured an article on a new theory by Stephen Hawking that involved the future having some effect or "backreaction" on the present.
As it would be very tedious and ...
0
votes
0answers
89 views
Nicholas Kollerstrom article on the history of Calculus
Today, Newton´s birthday, I read an article posted in the arXiv by Nicholas Kollerstrom
http://www.arxiv.org/abs/1212.2666
That basically claims that Newton did not invent Calculus. The article does ...
2
votes
2answers
147 views
Reference request for the Aharonov-Bohm effect
I am looking for a good reference to an online source or book, on the magnetic Aharonov-Bohm effect. I have read the appropriate sections from the book by Griffiths and Ballentine, and still haven't ...
6
votes
1answer
295 views
What are the 't Hooft papers about classical models underlying QM?
Gerard 't Hooft states in his webpage
I have mathematically sound equations that show how classical models generate quantum mechanics.
and there are some interesting discussions here in ...
7
votes
0answers
213 views
Lower bounds on spectral gaps of ferromagnetic spin-1/2 XXX Hamiltonians?
Question. Are there any references or techniques which can be applied to obtain energy gaps for ferromagnetic XXX spin-1/2 Hamitlonians, on general interaction graphs, or tree-graphs?
I'm interested ...
1
vote
1answer
296 views
Optical constants of noble metals: the Drude model for microwave modelling
I have a question regarding the optical constants of noble metals.
According to Johnson and Christy's paper Optical Constants of Noble Metals (Phys. Rev. B 6, 4370–4379 (1972), ...
2
votes
1answer
81 views
fitting van der waals law on real data
For an examples class on thermodynamics, I would like to fit Van der Waals law on data of real gasses, say $CO_2, H_2O_2, CH_4$.
I want to set out measurements of pressure and volume at constant ...
