Introduction Definition and 860 Threads

I am ar recently retired military officer with many interests. Liked your Forum. Was searching for groups that might be studying human/earth sustainability. Looking forward to reading, researching and posting comments.

Greetings, I am looking for a Introduction on quantum computers and algorithms such as shores algorithm(spelling may be wrong).The level of mathematics and QM is irelavent, thus integral calculation and nth degree differentail equation of any form are no problem. Any recommendations are apreciated.

I am having some problem with this attached question. I also attached my answer... My problem is the appearence of the term: 2 e (A \cdot \partial C) |\phi|^2 which shouldn't appear...but comes from cross terms of the: A \cdot A \rightarrow ( A + \partial C) \cdot (A + \partial C) In my...

In case anyone is interested in DQ I came across this, which is moderately accessible in parts. http://math.berkeley.edu/~alanw/242papers99/karaali.pdf Evidently Alan Weinstein (Berkeley faculty) was teaching a graduate course Math 242 back in 1999 and put this online for his students. If...

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Recently, knowing that I don't understand a lot of geometry and trigonometry stuff finally pissed me off, so I started re-learning math from scratch. Surprisingly, I found myself interested in discovering how all those things work and what they actually mean. Now I got a reading plan, but still...

Hi guys, I m reading some theoretical physics paper that requires knowledge of dirac notation if someone could point me out to a good tutorial on it I come from a math background but I am studying this paper with my supervisor.

I've got some spare room in my fall schedule, so I'm looking to get an extra course in. My options are two introductory courses: Statistics and Algebra. Topics in statistics are: probability theory, random variables, marginal and condition distributions, discrete and continuous probability...

I am in a huge dilemma. I dropped out of high school in 9th grade so I never have taken a science class. I have never seen biology, chemistry, physics. I started with arithmetic at the local community college. Fast forward and I am now taking calculus 2 in the fall. I am extremely ignorant of...

Homework Statement I was reading in a book that, " For any function f(x) whose functional form changes from f(x) to f'(x), we can write \bar{\delta}f(x) = f'(x) - f(x) = {f'(x') - f(x)} - {f'(x') - f'(x)} =...

What is a active load? Why we use the active load ? Please don't just say ,give examples also (in simple words please don't give links . Describe in ur words)

Hello there. So, I am new to physics. All I know about it is what I heard on school. I am looking for a book that can give me a good introduction to physics. Something which could show the works that have been done so far (I assume that must be a lot) and that can also show me where physics...

I would like to gain an understanding of the basics of Homology theory. Can MHB members please give some guidance as to how to approach this endeavour. What do MHB members suggest are good texts or good online resources? Peter

Homework Statement Silver has a density of 10.5E3 kg/m3 and a resistivity of 1.6E-8 Ω*m at room temperature. On the basis of the classical free electron gas model, and assuming that each silver atom contributes one electron to the electron gas, calculate the average time, Tau, between...

What are the best online introductory resources for Loop Quantum Gravity? I've never felt more out of my depth than when listening to Rovelli speak on the subject.

So I'm pretty new to the subject of quantum mechanics and was wondering if you folks know of any books or sites that give an introduction to Quantum mechanics. I should emphasis that I'm looking for rather basic explanations as my knowledge of the subject matter is minimal to nothing. Thanks...

Hello I am interested in self-teaching basic combustion concepts. Is there a good textbook available that introduces combustion at an undergraduate level for someone with high school chemistry knowledge? Thanks very much

I am (trying to :-) ) reading Dummit and Foote Section 10.4 on Tensor Products of Modules and am finding D&F's introduction to the topic of tensor products quite bewildering! ... Can anyone give me a simple definition of a tensor product of modules together with an example to give me a basic...

I hope I am posting this question in the correct forum. I am in the second course in an upper level Electricity and Magnetism sequence (E&M II). We are using Griffith's Introduction to Electrodynamics as in the first course in the sequence. We covered chapters 1-3, 5, 7, and some of 8 in the...

Does introducing small amount of hydrogen and oxygen with gasoline into an internal combustion engine make the sensor read lean and and just enter more gasoline? John

This is a graph containing the main Tschirnhausen transformations of a general quintic and the algorithms to solve them. The methods would be explicitly described most probably elsewhere in this forum https://www.physicsforums.com/attachments/1786._xfImport The lower-most nodes are the...

I am currently working from the Morris Kline: An Intuitive Approach to Calculus. I am beginning to understand why the math is done and what is happening throughout the problem. So far I am about to start the Chain Rule. My school uses Stewart for all their Calculus series and I have read...

Somebody threw a few books away and I found some Gems. From Tolstoy to Nahuatl philosophy and even a copy of Apostol! The one that interested me the most was Serwey Physics for Scientist and Engineers. I have never read or took a physics a class. Is Serwey a good starting point to learn physics?

I'm not quite sure what this course will entail, but it sounds interesting as I've been very interested in simulations like this, albeit it is a math class (MA1600) and my question is mainly this: what exactly would a class like this entail? What are the usual languages used? I've been required...

Semi-direct products are often confusing to the budding group theorist, with good reason: they are a bit more complicated than the more transparent direct products. First off, let's start with a (my apologies) formal definition: We need 2 groups to start with: we shall call these groups (for...

Hello everybody! Wanted to ask a couple of questions... 1) Which is the definition of a conformal field theory? 2) Which are the physical prerequisites one would need to start studying conformal field theories? (i.e Does one need to know supersymmetry? Does one need non-perturbative...

Hello! I would like to find a book which covers the historical development of Quantum Mechanics from which I can learn which experiments lead to which discoveries. In lectures you usually only get taught formalisms, but I would really like to know how the theory was developed. Can you tell me...

Hello all, I am looking for a set of videos/youtube lectures which can take somebody from zero physics knowledge up to a decent standard. This is purely for personal reasons as I'm not taking exams and would just like to have a relatively good understanding of the universe (as we know it)...

Author: George F. Simmons Title: Introduction to Topology and Modern Analysis Amazon Link: https://www.amazon.com/dp/1575242389/?tag=pfamazon01-20

Author: G. H. Hardy, Edward M. Wright Title: An Introduction to the Theory of Numbers Amazon Link: https://www.amazon.com/dp/0199219869/?tag=pfamazon01-20

My goal: To show the dimension of space [SIZE="3"]L equals the length of any maximal flag of [SIZE="3"]L; Is the following valid? My attempt: Let [SIZE="3"]M \rightarrow {L_{i-1}, ... L_i} where [SIZE="3"]{e_i} \in L_i [SIZE="5"]| [SIZE="3"]e_i \not\in L_{i-1} Assuming...

In Natural deduction in Predicate logic we have a rule which says [assume the set of hypotheses to be H) if H implies phi(x) then H implies [for all x phi(x)] such that x doesn't belong to FV(psi) for all psi in H [indeed such that x occurs free in no one of formulas in H] In other words, if...

Penrose Diagrams -- Introduction I'm woefully ignorant of a lot of things in GR, and now that I'm moving away from my comfortable spot in condensed matter, I'd like to know how to interpret Penrose diagrams. I'm having trouble understanding what it is they're actually showing and why they'd be...

I'm currently a 2nd year undergrad student. I have done introductory courses on Mechanics and Electromagnetism, with the corresponding maths required for them. I am trying to figure out where my interests lie in order to apply for Grad school next year (my degree is of 3 years). I need a list...

I'm in the market for an intro book covering airborne and ground radar fundamentals. The following two books are the top sellers on Amazon, but top seller doesn't mean best quality (Stewart Calculus, etc.). An Introduction to Airborne Radar by Stimson Principles of Modern Radar: Basic...