Theoretical Definition and 999 Threads

Hi, I'm really into particle theory and I applied for msc particles, strings and cosmology in Durham and msc of theoretical physics in Edinburgh. I know the msc in Durham is a really good one. However, since the msc in Edinburgh is a new one there is little information about it. It will be great...

I was recently shortlisted for interview ( for integrated Ph.D. in Theoretical physics) at a research university in India. As a part of the admission procedure I am supposed to give "A write-up of 200-250 words describing your interest in your most preferred field of study. The write-up should...

Hi everybody! I'm an Italian high-schooler (but I'm living in California for an exchange year) and I love Physics. I decided kinda 6 years ago that I was going to study Physics at the University, and only now I started deciding the field of physics (but I'm still not sure if Cosmology...

i have a simple question, but I'm not sure it can be answered with our knowledge of absolute zero: if an object were to exist at absolute zero, that means it has no energy, correct? if that is true, then if you struck something at absolute zero with another object, would the object with no...

Based on what I have learned, I know that a theoretical physicist has to work in a specific field. But can one work in two? For instance, a person who has a PhD in cosmology but is working on both cosmology and field theories (quantum, unified). Or maybe even the same person working at a...

Homework Statement #1 Does there exist a graph that has m times more edges than vertices? #2 How to calculate the number of possible graphs given the number of vertices and edges? Connected graphs, disconnected graphs. Homework EquationsThe Attempt at a Solution #1We know that a complete graph...

I'm in high school, thinking about what I want to do in college. I am aiming to get some sort of PhD in Theoretical Physics. I would love to just get one in general theoretical physics, but I am unsure if that is offered. I know that I can go into specific areas such as particle or field...

Hello. I'm finishing my last year of school and I have wanted to become a Theoretical Physicist at CERN for 2 years, so I want to get a PhD degree. Knowing that people at CERN speak both english and french, I decided to study Physics in Paris (bachelor-french, masters-english), but is it CERN...

The Scenario: Let's say one could have a lot of cations produced from a gas in a single plane contained in a 1 square foot area (like a fence around sheep). This plane of cations is over another one that is on the ground. So basically two layers of Cations in a tall hollow cube like...

I'm reading Frederic's Paugam "Towards the Mathematics of Quantum Field Theory." I'm also interested in higher structures in mathematics which could have applications in physics. How to check theese theories with the experimental data ? For example the data in LHC. Where can I find experimental...

I'm interested to get people's opinions on how plausible this is. My goal is to learn physics to the point that I can read and understand the latest works and potentially even contribute something small. My background: I have a bachelors and masters in computer science from a top-3 school and...

Hey all, I am currently a freshman double majoring in Physics and Math at Purdue University. I have been recently creating a schedule that orders all of the courses I need to take and those that I want to take for the rest of my undergraduate endeavors. I know that it's rather early to do...

Ok so I was trying to design a flywheel for a project of mine and an idea occurred to me. Why not use a gas instead of a solid wheel so you didn't haven't worry about it exploding? Could you spin a conductive gas using electromagnets situated around the gas chamber? Whats the maximum speed at...

Hello there. I am a student doing a MSci at one of the top British universities and top 5 world universities according to QS. I am doing a Natural Sciences Degree and must choose a specialisation in Physics starting next term. Ever since I was a child, my dream has been to study Astrophysics...

Per another thread I've decided not to pursue a PhD in mathematics, but rather do a Masters with a Thesis option. So it's time to start finding an area and zooming in. I am interested in complexity theory, and have been watching the whole "Big Data" scene with interest (and ignorance). I...

Hi! Which degree, which subject is more suitable for those wishing to approach theoretical/computational neuroscience and neural simulation, system biology and related fields like bioinformatics? Physics or Comupter science? (I live in Europe and we don't have major/minor system) Physics...

I've read about scientists such as Einstein who have advanced the field of physics. When Einstein was working on solving the grand unified theory, what were the obstacles? Was he trying to find patterns that could reveal something? Or did he have sufficient data, but solving certain math...

What is the physics branch with better opportunities in theoretical research? For exemple many people say that there are fewer chances to get a PhD in quantum gravity than a PhD in others branches of theoretical physics. Is that true? I think that there are more opportunities in theoretical...

Hi, I've decided to try to write and publish a paper by the end of my undergraduate degree. I'm planning to get advice from professors at my institution at a later stage in the process - I'd like to approach them when I've narrowed my topic some more and made the focus clearer, and when I've...

Good Evening to everyone! I'm currently a student of theoretical physics. I have a Bachelor Degree in Physics and I'm from Italy. When you finish your B.D. you can choose to go on with your studies in order to get a Master Degree (other 2 years of study) and here you can choose your curricula...

Hey folks, If someone wants to be a theoretical physicist is preferable to follow the mathematics department or the physics? i live in greece (just to know)

I am curious as to the differences, if one wishes to study the big bang and the origin of the universe, as his/hers primary studies. How would my field of study, and expertise differ coming from a theoretical physics background, compared to (theoretical) astrophysics? Would there be any...

I don't really have to look into this just yet but it bothers me. I quite like cosmology and stuff like such. Universal topology and relativity and sum of histories and stuff. Fun! I really would like to study any theoretical physics though, it just strikes my fancy particularly. I figure I'd...

I know Single variable Calculus and I have a basic understanding of multivariable calculus. I also happen to know basic linear algebra. What are the mathematical pre-requisites needed in order to self-study theoretical mechanics? I'm planning to take this course...

I'm applying for graduate school but am from a basically unknown state school. My stats can be found here: http://www.physicsgre.com/viewtopic.php?f=21&t=5735. I am looking for a low ranked or unranked theoretical cosmology/hep-th school or a similarly ranked observational astronomy program...

Hi. I am calculating the pressure loss through straight pipes and pressure loss through pipe fittings. I need to compare the theoretical value with to the actual experimental values. But the thing is, do I use the Darcy equation for both calculations or are there separate equations to calculate...

Hi, I am just starting my studies in earnest in Physics (woo, Freshman!) and plan on eventually seeking a PhD in theoretical physics. I was wondering if there were any "cannon" works, textbooks that almost every one knows or has studied from at some point, that I should start looking at...

An object has initial speed u and acceleration a. After traveling a distance s, its final speed is v. Which of the following includes the two conditions necessary for the equation, v^2 = u^2 +2as, to apply? I know the answer is a has constant magnitude and a has constant direction, but I am...

For next term, I was wondering if I should take a course in non-commutative algebra. As of now, I'm focusing on mathematical physics, specifically on the mathematical side of string theory; mirror symmetry and field theories. I know that commutative algebra as well as algebraic geometry are...

Having been a lurker on the site for a few months I decided to make a post concerning my current college situation. I started a theoretical physics course this year, while I am intrigued by the material, the first two years of college would be far more relaxed and I would have more time to...

Homework Statement m=maximum h=distance on the screen from the center of the pattern to the mth maximum D=distance from the central bright peak to the slits d=distance between two slits I have m=1 d(mm)=0.25mm D=2000mm h=0.5mm wavelength= 6.25E-5mm Homework Equations So I used...

I hope I do not extend myself here. I am a Brazilian High School student, graduating this year, that plans to pursue a Physics undergraduate in the United States. Since I started High School I decided on my degree; I love physics and my ultimate dream is to research the depths of the field...

Homework Statement 1. A student investigated several esters, and made octyl acetate, an ester with the fragrance of oranges. The student used the acid derivative, acetyl chloride (as you saw decanedioyl dichloride used to make 6,10 nylon) and 1-octanol. Using the following information...

If there was a room with all walls that are 100% reflective and a light source. If you were to instantaneously remove that light source, would the room still be lighted? If yes, if an object and the light source were previously present the room, and were to be instantaneously removed, would the...

So, I have an atwood machine lab. What I have been given is the masses of either end and time it takes the heavier mass to hit the ground from a distance. M1= .2kg M2 = .15kg avg time = 1.12 sec What i think I have to do: To find the actual acceleration I have to use v = vi + at and solve for...

Definitely looking to pursue graduate level theoretical physics in Quantum Mechanics. Which undergrad program would be best? Mathematical Physics, General Physics, or Astrophysics?

Hello all, I've got one more semester before I earn my physics MS, and I have space for one or two extra courses. I am going into oceanography, and I would like to have a strong foundation in math in order to understand the theory I'll encounter as well as possible. Lots of physical...

Homework Statement Write down the complex potential for a source of strength m located at z=ih and a source of strength m located at z=-ih. Show that the real axis is a streamline in the resulting flow field, and so deduce that the complex potential for the two sources is also the complex...

Hi, So what exactly does somebody who is involved in "theoretical physics" do at their job? This is not the same thing as somebody who is involved in experimental physics, right? If I understand right, theoretical physics is the stuff we learn in class. It's the theory to explain the phenomena...

When I started undergrad I was speaking with my lab professor, a theoretical physicist, and he asked what I wanted to do when I am done with school. I said I planned on being a theoretical physicist and he told me that about 3/4 of the students in his graduate program at Stanford wanted to be...

Ages ago I read that the maximum possible bandwidth using radio waves was in the low tbps range. I've had this rattling around in my head ever since and have occasionally tried looking it up to see if it was true. I've not had much luck in that but it did prompt me to start wondering what the...

Hi everyone, I 'm doing a physics degree in Imperial College london, I have a tendency to do experimental physics research in the future, however, I applied to the theoretical physics course 3 years ago, which means (a year less labs than the experimental physicists, I made this decision because...

In the above title 10 and 1000 are arbitrary numbers I will use them below to signify the concept of a smaller and larger number. I know that n points are described by at most an x^(n-1) polynomial. What I really mean to ask is: Is it possible to take a "smaller" amount of points say 10, go...

The time I will be asked to take a subject for my graduation project and I'm searching for something in hot fields for modern physics research. Unfortunately I don't know where to look and I was hoping for some help. Any suggestion would be much appreciated. Thank you in advance.

Hey! :o What topics for master thesis could someone do at the field theoretical mathematics and what at the field applied mathematics?? At the field Theoretical Mathematics there are the subjects: Basic subjects: Algebra, Introduction to Differentiable Manifolds, Functional Analysis, Complex...

Homework Statement A projectile is launched horizontally. A retarding force acts on the projectile of the form F = -Ae^(cv). Find it's speed as function of time. Homework Equations F = ma The Attempt at a Solution m(dv/dt) = -Ae^(cv) e^(-cv) dv = (-A/m) dt I integrated the...

Hello all, I have a few questions and a few thoughts I think I understand that according to einsteins theory of relativity, wavelengths can be perceived differently when traveling at different velocities comparatively to when it was emitted. i.e. if something traveling close to the speed...

Hi everyone, Please refer me to a very advanced mathematical physics reference that has applications in theoretical particle physics. I have seen the book Howard Georgi in Lie Algebras in particle physics but want more advanced ones. Any ideas would be very appreciated.Paul

Good morning! I want to show you a few exercises given to me by my Physics teacher as an additional task. I'm aware that for some of you they may seem trivial, but I found it hard to face them because of them being full theoretical, with no actual data given. Mind that I'm only 15 :(. I'd love...

I'm currently looking into a career in either Astrophysics, Theoretical Physics, or Theoretical Astrophysics. What is the difference between the subject matter in each of these three fields and how would I go about attaining status of Theoretical Astrophysicist? I have found numerous majors...