What are the physical significance of Bogoliubov transformation?

It helps in the diagonalization of the many body interaction Hamiltonian (such as in BEC). However, I am interested in the physical significance of the coefficients of the operators in this...

31 December 2017 6,051 5 View

What is dipole-dipole interaction? What kind of interaction it is?

I am curious to know about dipole-dipole interaction and the origin of this interaction. how can i visualize this interaction in bulk?

10 November 2017 5,984 3 View

What is the difference between population transfer between two quantum states/system and the state transfer in quantum system?

04 May 2017 8,778 1 View

Can liquid be used to sense the forces/weak forces?

When I hit a water container, it shows ripples which is due to harmonic property of the water and are visible to eyes. But what about if amplitude is very weak and cant be seen by eyes such as...

01 February 2017 8,324 0 View

What are the conditions for an harmonic oscillator(mesoscopic) to behave as classical or quantum oscillator?

The position of the oscillator fluctuates with a root mean square displacement amplitude del x= (Kb*T/m*w^2)^1/2, where m is mass of the oscillator and w is frequency. At high temp. oscillator...

11 December 2015 6,351 25 View

What is genetic problem? How it works?

The disorder in human body is related to mutation of genes. But how it works and on what factor does it depend?.

10 November 2015 4,248 2 View

What is your perspective about coincidences?

I have observed many times that I met with things or moments that I was thinking about(imaging) in my past. What do you think about coincidences concurring in our life? do they have any value in...

10 November 2015 965 1 View

What does it mean by entanglement of two atom with a single photon?

How can i visualize this phenomenon?...Please interpret in detail...

09 October 2015 2,552 4 View

Isn't it better to being a human than a arrogant educated person?

08 September 2015 542 3 View

Why time is uniform?

Just a query(space time and evolution): If time runs very fast things will disappear. similarly if time runs slow or very slow things will be stationary(w.r.t what i don't know). But time is...

07 August 2015 6,409 9 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

I got 02 moderator values defining Johnson-Neyman significance regions. Is it an error?

Hi everyone, I am conducting research for my Master's thesis. I am using PROCESS by Johnson-Neyman to analyze my Moderator model. I test the relationship between Public Service Motivation and...

03 March 2021 2,350 2 View

Irradiation data for JAPAN?

Hi, Could you help me to get the latest (2019, 2020) solar resource data for a particular site in JAPAN? PV GIS and NSRDB data are not in reach to JAPAN, I'm looking for some other database for...

03 March 2021 961 3 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View