State Definition and 1000 Threads

Ondo State is a state in southwestern Nigeria. Created in February 1976 from the former Western State, Ondo State borders Ekiti State (formally part of the state) to the north, Kogi State to the northeast, Edo State to the east, Delta State to the southwest, Osun State to the northwest, and Atlantic Ocean to the south. The state's capital is Akure, the former capital of the ancient Akure Kingdom.
Nicknamed the "Sunshine State", Ondo State is the 18th largest state in the country. The state is predominantly Yoruba, and the Yoruba language is commonly spoken. The state economy is dominated by the petroleum industry, with cocoa production, asphalt mining, and activities utilizing the state's extensive coastline also serving as major economic factors.

View More On Wikipedia.org
Recent contents Top users
  1. Kara386

    Energy shift in excited state sodium

    Homework Statement The spin-orbit interaction in sodium results in fine structure with energy shifts given by: ##\Delta E_j = \frac{C}{2}[j(j+1)-l(l+1)-s(s+1)]## If ##l##, ##s## and ##j## describe the single outer electron in sodium. Show that if this electron is excited to a state where l>0...
  2. sammyqw

    Engineering How to Determine Vc(0) in a DC State RC Circuit?

    Homework Statement Find Vc(0) Homework Equations Nodal Eq , ohms law The Attempt at a Solution Can someone please check my work for Vc(0)? I'll appreciate it.
  3. arpon

    I Can internal energy be calculated from equation of state?

    We know, $$dU=TdS-PdV$$ ##\int PdV## can be calculated if the equation of state is given. I tried to express ##S## as a function of ##P ,V## or ##T## (any two of those). $$dS=\left(\frac{\partial S}{\partial V}\right)_T dV+\left(\frac{\partial S}{\partial T}\right)_V dT$$ $$=\left(\frac{\partial...
  4. hernando Jose

    Is there a table of Viscosity vs Temp for metals (liquid state)?

    [moderator's note: I've decided to allow this question despite the lack of the formatting template - gneill] ladies and gentlemen, my most cordial greeting to you. i write here cause i need a viscosity vs Temperature data table about liquid metals (more specific pure Post-transition metal...
  5. M

    I Two single-photon Fock states vs one two-photon Fock state

    What is the difference between two single-photon Fock states ##|1\rangle |1\rangle## and one two-photon Fock state ##|2\rangle## (all in the same mode)? In both cases the mean photon number is 2. How do we distinguish them experimentally?
  6. B

    I Entangled system pure state or not?

    According to atty.. entangled system are pure (can be in superposition) while according to Bill.. entangled system are not pure (not in superposition) Here's the prove of what they stated: atty said...
  7. sammyqw

    Engineering Circuits 1 help with this circuit in a DC state

    Homework Statement http://imgur.com/a/4YfkJ http://imgur.com/a/4YfkJ Homework Equations for t<0 I understand that Capacitor acts as an open circuit and goes away but why did the 90v and 6ohm resistor disappeared? is it because current doesn't go that way? and also in that KCL at node V1...
  8. B

    B Understanding Pure States in Quantum Mechanics: From Atoms to Electrons

    I learned about pure state, mixed state, reduce density matrix, etc. from this now famous paper http://philsci-archive.pitt.edu/5439/1/Decoherence_Essay_arXiv_version.pdf (thanks to Bill) I'd like to know something. Atty said somewhere: "A pure state means that we have prepared many copies of...
  9. M

    I Beam in specific photon number state?

    Can a beam of light be objectively in a specific photon number state (Fock state), let's say ##|2\rangle##? Or is it (the specification of the state) detector/observer dependent? I.e. we can only say that a beam of light is in a Fock state, but which exactly is detector dependent (detection time...
  10. S

    A How Do Ladder Operators Annihilate States in SU(2) Algebra?

    Let the generators of the SU(2) algebra be ##\tau_{1}##, ##\tau_{2}## and ##\tau_{3}##. Consider an ##N## dimensional representation, which means that the ##\tau_{i}## are ##N \times N## matrices which act on some ##N##-dimensional vector space. Consider the ladder operators...
  11. M

    MHB State the angles in terms of x , Circle theorems

    Problem O is the center of the circle and AB is the diameter of this circle , C & D are points on this circle , If $\angle CDB=x^\circ$ ,State the following angles in terms of $x$ $\angle CAB$ $\angle CBA$ Workings & what is known $OC=OB=OA$ radii of the same circle $\therefore \angle...
  12. K

    What is the relationship between matrix dimensions in state space control?

    Hello, I want to verify this question. In short, "Where did input matrix Bu arise from?" I was wondering why the state equation has to be in the form of x_dot=Ax+Bu. I got to the point that the highest order terms can be expressed in the form of linear superposition of lower degree terms. If...
  13. S

    News Is Jeremy Corbyn's Labour Party Victory Creating a One Party State in the UK?

    Far leftist Jeremy Corbyn won the election for the British Labour Party leadership as expected. He was the incumbent leader since 2015.. He won based on the support of constituent party members, but with almost no support from the parliamentary Labour Party. The party is expected to split...
  14. T

    Steady State Solution of Forced, Damped Harmonic Oscillator

    Homework Statement A damped harmonic oscillator is driven by an external force of the form $$F_{ext}=F_0sin(\omega t)$$ Show that the steady state solution is given by $$x(t)=A(\omega)sin(\omega t-\phi)$$ where $$ A(\omega)=\frac{F_0/m}{[(\omega_0^2-\omega^2)^2+4\gamma^2\omega^2]^{1/2}} $$ and...
  15. O

    Brain Damage -- does it also affect their emotional state?

    For people who hit their head and suffer loss of mathematical and linguistic ability, does it also affect their emotional state? I met a woman who hit her head on table while falling down when she was 14 years old. Now she is 30+ years old. She said after the fall she can no longer comprehend...
  16. K

    I When is a given state an eigenstate of a given operator?

    How do I know if some given state is and eigenstate of some given operator?
  17. pliep2000

    I State space of a standing wave?

    Lets say a state is defined by the minimal amount of independent variables to completely describe a system. One would come up with the (q,p)-phase-space for a point mass and as another example the Hilbert-space for quantum-states. Consider the very simple case of a standing wave in string...
  18. Jilang

    I Is the state observer dependent

    I was just reading the thread about the dead cat/live cat. Is the state of the cat dependent on the knowledge of the observer?
  19. K

    I Why is the s state spherically symmetric?

    Hi there, I am reading something about quantum numbers, there the author introduce the quantum number by solving Schrodinger equation for Hydrogen atom. It gives me an example when the principal quantum number n=4, there are four different sub-level ##s, p, d, f##. It also depicts the sublevel...
  20. Alvis

    Solid State Physics, FCC or BCC and why?

    Homework Statement Based on sizes for Na(.97 Angstroms), Cs(1.67 Angstroms), and Cl(1.81 Angstroms), which lattice type would you expect for NaCl and CsCl and why? Homework Equations My equation for the hole size for a bcc is (4/sqrt(3))(radius)-2(radius), I assume you put in the radius of Cl...
  21. K

    Steady state error- Control system

    Hello, I have a question about steady state error. how can we get to the C? I think it has to be Ea(G1+D)G2=C which gives(R-NH)(G1+D)G2 / (1+(G1+D)G2H)=C
  22. A

    How can we really state that mass (or energy ) is conserved?

    If we consider a box( in our quantum world ) with three balls having total mass 'M= m1 + m2 +m3' . After changing their positions, now, calculating the mass will give another value which is not equal to 'M' but 'M*=m*1 +m*2 + m*3)', which implies our mass is not conserved. then how could energy...
  23. munirah

    How to calculate negativity measurement of quantum state?

    Good day, From my reading according to negativity for tripartite state, it is given as below; $$N_{ABC}(\rho)=(N_{A-BC}N_{B-AC}N_{C-AB})^{1/3}$$ with $$N_{I-JK}=-2\Sigma_i\sigma_i(\rho^{TI})$$ where $$\sigma_i(\rho^{TI})$$ being the negative eigenvalues of $$\rho^{TI}$$, the partial...
  24. blackdranzer

    I Can the internal energy of the surroundings change in an irreversible cycle?

    consider an irreversible cycle. There will be no changes in the state variables (like U, S) of the system undergoing the cycle, but for the surroundings, there will be change in the state variables, in fact, entropy increases. my question is, what happens to the internal energy of the...
  25. B3NR4Y

    Two-Level Quantum System, Need help Finding State at time t

    Homework Statement |1> and |2> form an orthonormal basis for a two-level system. The Hamiltonian of this system is given by: \hat{H} = \epsilon \begin{pmatrix} 1 & i \\ -i & 1 \end{pmatrix} a.) Is this Hamiltonian hermitian? What is the significance of a hermitian operator? b.) Find the...
  26. H

    I Solid State NMR and X-ray Crystallography resources

    Hello, I need to learn how Solid State NMR and X-ray Crystallography work (theory and practical application). I'm primary interested in how those experimental techniques are used to determine molecular structures. I'm an undergrad physics student and I need this to pass my final exam. So if some...
  27. S

    I State of a Generator in Representation Theory

    Hello! I am reading something about representation theory (just started) and I encountered this: "We will denote the state in the adjoint representation corresponding to an arbitrary generator ## X_a ## as |## X_a ##>". What is the state of a generator in a certain representation? Thank you!
  28. munirah

    From density matrix, how can I know what state it belongs to

    Homework Statement Given a density matrix of three qubit pure state, how can I know after do some transformation, this state belong to what class?. Class I mean here, either separable state, biseparable, GHZ state or W state? I mean here what is the indicator to me classify it? It is the...
  29. C

    Solid State Physics - Miller Planes/Indices and Finding a

    Homework Statement Q3a [/B] Copper (Cu) crystallises in a face-‐centre cubic (fcc) structure (with a basis of one copper atom). Draw a diagram of the unit cell of Cu, on your diagram indicate the (1, 1, 0) lattice plane and the [2, 2, 1] lattice direction. Q3b: Calculate the...
  30. I

    How Is the Wigner Function Calculated for an Even Coherent State?

    Homework Statement I am trying to calculate the wigner function for the even coherent state or cat state gives by, | \psi \rangle = N_+ \left( |\alpha \rangle + | -\alpha \rangle \right), where ##|\alpha \rangle ## is a coherent state and ## |N_+|^2 = \dfrac{1}{ 2 + 2e^{-2|\alpha|^2}}##. I am...
  31. V

    I How do I find this state |j,m=j> to calculate another state?

    I’m confused about how you find the vector |s;s⟩ to use in the general equation |θ,ϕ⟩=exp(−iϕS3) * exp(−iθS2) |s;s⟩ For spin Coherent states (From http://www.scholarpedia.org/article/Coherent_state_(Quantum_mechanics)#4._Spin_Coherent_States Eq 12) Or how you find the vector |j,m=j⟩ to use...
  32. V

    I Confusion about initial states and coherent states

    I've found online that the coherent state of the harmonic oscillator is |\alpha \rangle = c \sum_{n=0}^\infty \frac{\alpha^n}{\sqrt{n!}} | n\rangle where |n\rangle = \frac{(a^\dagger)^n}{\sqrt{n!}} |0\rangle and |0> is called the initial state. I've some code where I need to have this...
  33. looseleaf

    I Is the Triplet State Entanglement the same as Singlet State Entanglement?

    Hi all! I know that the singlet state is entangled. Is the center triplet state also entangled? At first blush it seems like it should be as the state expression has the same structure with the minus sign replaced by a plus. Thanks in advance!
  34. L

    B Bell's state measurement in the Bell basis

    Hi all My question: One of the four Bell's state are measuring in the Bell basis. Whether the result of measurement of this one of the four Bell's state will be the same Bell's state (just that Bell's state which are measuring) ? The each of four Bell's state is a quantum superposition of the...
  35. P

    I State of the Universe if we increase/decrease the binding energy of deuterium

    [Sorry for the vague title, had a limit.] I have a question given in my Astronomy class: Below is a list of possible ways in which the universe could have been different. Some of these changes would make life as we know it impossible in our universe. Tick the boxes next to all the changes that...
  36. J

    MHB 3 forces, 5N,6N and 7N ac on a particle which remains in a state of equilibrium.

    3 forces, 5N,6N and 7N act on a particle which remains in a state of equilibrium. What is the angle between the 5N and 6N force?
  37. B

    I The Lagrangian of a Coherent State

    How does one write a Lagrangian of a coherent state of vector fields (of differing energy levels) in terms of the the individual Lagrangians? I desperately need to know how to know to do this, for a theory of mine to make any progress. Please stick with me, if I didn't make sense just ask...
  38. G

    B Schrodinger cat superperposition vs sharp state

    On the Schrodinger cat, can I simply say, outside the box,the state is in superposition,but inside the box, the state is not. Besides, the experiment is so simple to do, how come no body ever did it ?. Just put an animal you hate or even an inset, and observe the expected (50% -50%) result...
  39. entropy1

    B Does weak measurement cause mixed state?

    Does a 'weak measurement' on the spin of an electron in a pure state put the electron in a mixed state of the previous state and the state of the measurement axis of the measurement?
  40. J

    I What is the relation between Temperature and Quantum State?

    Hi folks, Let's pick a simple example, the H atom. We can calculate all spherical armonics, all quantum numbers so we are able to know which are all the possible states of the electron. We know all the values this observables can take. But the question is, let's say we have a handbook of...
  41. J

    Linear quadratic state regulator

    Dx (t)=(B u (t) - v (t))dt B is 7x3 which is known U is 3x1 unknown V is 7x1 which is known dt is step size 0.1 A matrix is equal zero How to design a controller that will drive state to zero
  42. B

    Solving a System of ODE for Steady State

    I am trying to find the steady states in the ODE system. Assuming y0 = 2.5 * 10^5, I want to calculate y1, y2, y3 at the steady state. I do not understand how this would be possible, because only y0 is given and the following: d0 = 0.003, d1 = 0.008, d2 = 0.05, d3 = 1, ry = 0.008, ay = 1.6/100...
  43. Xico Sim

    I Obtaining the decuplet of baryon states from one state

    Hi, guys. If you are given one state of the baryon decuplet (the upper-right state ##\Deltaˆ{++}=uuu##, for instance), you can use the ladder operators to get the other states of the decuplet. When I apply ##T_-## to uuu and normalizing, I get ##\frac{1}{\sqrt{3}}(duu+udu+uud)##. However, in...
  44. amjad-sh

    I Volume in K space occupied per allowed state

    An allowed state of a molecule in a gas that is in a box of length L can be represented by a point in 3 dimensional K-space, and these points are uniformly distributed.In each direction points are separated by a distance π/L. A single point in K-space occupies a volume (π/L)^3. The number of...
  45. DeathbyGreen

    Solid State No Love for Kittel: An Alternative Textbook for Solid State Physics?

    I wasn't sure if I should post this in general discussion or in solid state section, but am I the only one who finds the Kittel textbook horrible? It seems full of semi-empirical, basic math, and boring, surface level observations written as dryly as possible. I really like solid state physics...
  46. entropy1

    I Macro state of a measurement device and correlation

    I have a question that seems to reflect my main concern with QM. Here it is: Consider a series of polarisation-entangled photon pairs that are sent in opposite direction to two measuring devices (e.g. at opposite ends of the universe). The measurement consists of detection of a photon after...
  47. B

    Simulating an Experiment for a two state system

    So I am so beyond stuck and my advisor told me that my progress is very slow. I made a post before about how I'm new to coding and everything, but now I kind of have to forget about the "learning" and make progress. Does anyone have tips on understanding the Baum-Welch algorithm...
  48. E

    How do calculate the prob of being in a state in therm eq?

    Homework Statement A pore has three configurations with the energy levels shown. The pore is in thermal equilibrium with the surroundings at temperature T . Find the probabilities ##p_1##, ##p_2##, ##p_3## of being in each level. Each level has only one microstate associated with it. Also...
  49. H

    A I need information on a solid state question -- gas to solid transistion

    what is the best quality to know if a gas for example became solid ...soldification Speacking about small quantity of gas that we can't see with our eyes ... what electrical quantity that i need to read to know that this very light gas become a solid metal and could that quantity give me...
  50. J

    A What is the state of the art in solving polynomial equations?

    Hi folks, I know the work from Galois showing it is not possible to solve certain equations using only a certain type of numbers. But that was more than 100 years ago, I suppose lots of progress has been made on this topic. So my question is, What has been discovered to solve polynomial...
Back
Top