answersLogoWhite

0


Want this question answered?

Be notified when an answer is posted

Add your answer:

Earn +20 pts
Q: What is the carrier particle of magnetic force in QFT?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Natural Sciences

Do electrons have negative mass?

No. There is really no such thing as negative mass. Even antimatter has mass, which is always a positive (that is, greater-than-zero) quantity. There is, however, the concept of effective mass or apparent mass, which can be negative. When an object is submerged in water, its apparent weight is reduced by an amount equivalent to the weight of water it displaces. For example, if a 10-pound rock is dropped into a bucket of water and displaces one pound of water, the effective weight of the rock under water is nine pounds. But what if you submerge something much less dense than a rock -- say, your little brother's head -- in the bucket? Okay, forget that. Let's says a big ball of Styrofoam, instead. (Not as eco-friendly but less violent.) In that case, the weight of the water displaced by the ball will be far greater than the actual weight of the ball, so when you subtract the weight of the water from the weight of the ball, you'll get a negative number. In other words, the effective weight of the ball under water will be negative, and the ball will tend to rise. It will fight your efforts to submerge it, much as your brother would if you submerged his head (but for reasons other than mere buoyancy).


What is an operator in quantum mechanics?

In the dirac view of quantum mechanics, operators are the center of analysis. An operator is some mathematical operation that acts on the wavefunction (psi) which returns an observable. Lets look at some examples: say psi=exp(ik(dot)r)*exp(iomega*t) (which is the case for a free particle) the momentum operator is the -ihbar gradiant applying this to our psi- we get hbar k. This is called the observable. perhaps more familiar the energy operator which would likewise return hbar omega. Now doesn't that look familiar! Interestingly enough, these two examples point out that the conservation of momentum and energy stem from the laws of physics being invariant, regardless of position and time.


Related questions

What is a QFT robust-control toolbox?

It is a special tool box available with matlab 5.0 for designing QFT controller


What does QFT stand for?

There are a few acronyms see link below.


How many 35qft in one meter?

No idea what a qft is but 1 metre = 0.094 lots of 3 feet.


How much of an acre is 13004 qft?

One acre has 43,560 square feet. Divide the number of square feet by that and you get the number of acres. This gives you an answer of .298 acres.


What is wave particle duality of light?

The theoretical wave particle duality of light states that a particle of light (a photon) exerts the characteristics of a wave and of a particle. This is a consequence of the nature of light; a single 'unit' of light comprises of a photon and an electromagnetic field, which can consequently exert either (or both) the characteristics of a wave and the characteristics of a particle. Heisenberg's principle of uncertainty is, therefore, applicable to light 'packets', and indicates that either the momentum or the position of the particle will be measured less accurately as the accuracy of the other increases.It is considered a paradox. Einstein first proposed that Planck's 'Quanta' should also be applied to light. It was strongly resisted, but he eventually won his Nobel Prize for it. It is often misunderstood. Photon particles have only ever actually been observed at short ranges and with short life. They are however also assumed to travel from distant stars, which came back to bite Einstein as particle conservation is one of the obstacles for Unification of QFT with Relativity. Energy is wave oscillation, and particles are focussed oscillation, (and/or 'spin') seen as 'corpuscles'. They also behave and 'group' in a 'wave like' way at a macro scale, Youngs twin slip experiment, the wave ahead of the earths bow shock are waves consisting of many billions of particles, similar to the surface of the sea.


What is bio entanglement physics?

Bio entanglement physics - or theory (BET) - has it's roots in Quantum Field Theory. QFT is the idea, proven to a large degree, that if you wiggle a particle on this side of the galaxy, it's tied-pair-partner (very hard to describe in laymans' terms, sorry) will mirror that movement on the other side of the galaxy; at the same time. Einstein had great trouble with this, because it breaks the boundaries of the General Theory of Relativity, or E=mc2. He and two other well known physicists set up experiments to disprove the notion, and ended up proving it instead! The reason I bring these up is that QFT implies that information can, regardless of it's size or length, travel beyond the speed of light; indeed, instantly. BET attempts to utilise this information and understanding to prove that there is a link between living beings. In much the same way that fish - all at the same time - change direction in a school with no understanding of why the same direction was chosen by all the fish at once. The actions happen multiples of times faster than the bioelectrical pathways would allow. Or why you are thinking about someone and the phone rings; and it's the person you were thinking of. It goes further still. REGs, or random event generators, measure the frequency of the Earth's atmosphere. The Earth vibrates at a particular frequency which increases or decreases over patches of high energy intensity, like a large lightning storm, earthquake area.....or Tokyo! These REGs also picked up serious frequency fluctuations worldwide around events like Sept 11 2001, Katrina, Aceh Tsunami and the Iraq invasion. It appears that when human emotions are aligned, on a larger than normal scale, that the atmospheric frequency of the Earth changes - but more research is needed to entirely prove it. The evidence to date, however, is quite compelling. So this is BET in a nutshell - the desire to prove conscious interconnectedness. Aaron Sice - www.aaronsice.com.au


What tests are used to screen for TB?

Besides culturing in the laboratory, the two most common types of tests to screen for exposure to this disease are the Mantoux PPD tuberculin skin test, which is generally considered more reliable, and the older TB tine test, which is now rarely used


Is there a McDonalds near the Sphinx?

It seems to be it does. Check it here http://www.google.cz/imgres?um=1&hl=cs&sa=X&biw=1366&bih=678&tbm=isch&tbnid=uU8bGk5Dbh2DCM:&imgrefurl=http://forum.watmm.com/topic/73620-billion-dollar-ghost-city-in-usa-to-test-future-tech/&docid=Qft-AmsjK9p-AM&imgurl=http://images.travelpod.com/users/jo-on-the-go/3.1268581662.the-sphinx-and-the-giza-plateau-oh-and-pizza-h.jpg&w=550&h=410&ei=_06DUNyHMs7ItAapu4DYAw&zoom=1&iact=hc&vpx=762&vpy=315&dur=270&hovh=194&hovw=260&tx=168&ty=82&sig=115636390486412750487&page=1&tbnh=146&tbnw=192&start=0&ndsp=18&ved=1t:429,r:9,s:0,i:93


Do electrons have negative mass?

No. There is really no such thing as negative mass. Even antimatter has mass, which is always a positive (that is, greater-than-zero) quantity. There is, however, the concept of effective mass or apparent mass, which can be negative. When an object is submerged in water, its apparent weight is reduced by an amount equivalent to the weight of water it displaces. For example, if a 10-pound rock is dropped into a bucket of water and displaces one pound of water, the effective weight of the rock under water is nine pounds. But what if you submerge something much less dense than a rock -- say, your little brother's head -- in the bucket? Okay, forget that. Let's says a big ball of Styrofoam, instead. (Not as eco-friendly but less violent.) In that case, the weight of the water displaced by the ball will be far greater than the actual weight of the ball, so when you subtract the weight of the water from the weight of the ball, you'll get a negative number. In other words, the effective weight of the ball under water will be negative, and the ball will tend to rise. It will fight your efforts to submerge it, much as your brother would if you submerged his head (but for reasons other than mere buoyancy).


What is an operator in quantum mechanics?

In the dirac view of quantum mechanics, operators are the center of analysis. An operator is some mathematical operation that acts on the wavefunction (psi) which returns an observable. Lets look at some examples: say psi=exp(ik(dot)r)*exp(iomega*t) (which is the case for a free particle) the momentum operator is the -ihbar gradiant applying this to our psi- we get hbar k. This is called the observable. perhaps more familiar the energy operator which would likewise return hbar omega. Now doesn't that look familiar! Interestingly enough, these two examples point out that the conservation of momentum and energy stem from the laws of physics being invariant, regardless of position and time.


What are some Famous opinions on the book The Clique?

Some people praise the book for its portrayal of teenage friendships and social dynamics. Others criticize it for promoting materialism and superficial values. Overall, opinions on The Clique tend to vary depending on individual perspectives and personal values.


Pulmonary tuberculosis?

DefinitionPulmonary tuberculosis (TB) is a contagious bacterial infection that mainly involves the lungs, but may spread to other organs.Alternative NamesTB; Tuberculosis - pulmonaryCauses, incidence, and risk factorsPulmonary tuberculosis (TB) is caused by the bacteria Mycobacterium tuberculosis (M. tuberculosis). You can get TB by breathing in air droplets from a cough or sneeze of an infected person. This is called primary TB.In the United States, most people will recover from primary TB infection without further evidence of the disease. The infection may stay asleep or nonactive (dormant) for years. However, in some people it can reactivate.Most people who develop symptoms of a TB infection first became infected in the past. However, in some cases, the disease may become active within weeks after the primary infection.The following people are at higher risk for active TB:ElderlyInfantsPeople with weakened immune systems, for example due to AIDS, chemotherapy, or antirejection medicines given after an organ transplantYour risk of contracting TB increases if you:Are in frequent contact with people who have the diseaseHave poor nutritionLive in crowded or unsanitary living conditionsThe following factors may increase the rate of TB infection in a population:Increase in HIV infectionsIncrease in number of homeless people (poor environment and nutrition)The appearance of drug-resistant strains of TBIn the United States, there are approximately 10 cases of TB per 100,000 people. However, rates vary dramatically by area of residence and socioeconomic class.See also: Disseminated tuberculosisSymptomsThe primary stage of the disease usually doesn't cause symptoms. When symptoms of pulmonary TB occur, they may include:Cough (sometimes producing phlegm)Coughing up bloodExcessive sweating, especially at nightFatigueFeverUnintentional weight lossOther symptoms that may occur with this disease:Breathing difficultyChest painWheezingSigns and testsExamination may show:Clubbing of the fingers or toes (in people with advanced disease)Enlarged or tender lymph nodes in the neck or other areasFluid around a lungUnusual breath sounds (crackles)Tests may include:Biopsy of the affected tissue (rare)BronchoscopyChest CT scanChest x-rayInterferon-gamma blood test such as the QFT-Gold test to test for TB infectionSputum examination and culturesThoracentesisTuberculin skin testTreatmentThe goal of treatment is to cure the infection with drugs that fight the TB bacteria. Treatment of active pulmonary TB will always involve a combination of many drugs (usually four drugs). All of the drugs are continued until lab tests show which medicines work best.The most commonly used drugs include:IsoniazidRifampinPyrazinamideEthambutolOther drugs that may be used to treat TB include:AmikacinEthionamideMoxifloxacinPara-aminosalicylic acidStreptomycinYou may need to take many different pills at different times of the day for 1 year or longer. It is very important that you take the pills the way your health care provider instructed.When people do not take their tuberculosis medications as recommended, the infection becomes much more difficult to treat. The TB bacteria may become resistant to treatment, and sometimes, the drugs no longer help treat the infection.When there is a concern that a patient may not take all the medication as directed, a health care provider may need to watch the person take the prescribed drugs. This is called directly observed therapy. In this case, drugs may be given 2 or 3 times per week, as prescribed by a doctor.You may need to be admitted to a hospital for 2 - 4 weeks to avoid spreading the disease to others until you are no longer contagious.Your doctor or nurse is required by law to report your TB illness to the local health department. Your health care team will be sure that you receive the best care for your TB.Support GroupsYou can ease the stress of illness by joining a support group where members share common experiences and problems.See: Lung disease - support groupExpectations (prognosis)Symptoms may improve in 2 - 3 weeks. A chest x-ray will not show this improvement until later. The outlook is excellent if pulmonary TB is diagnosed early and treatment is begun quickly.ComplicationsPulmonary TB can cause permanent lung damage if not treated early.Medicines used to treat TB may cause side effects, including liver problems. Other side effects include:Changes in visionOrange- or brown-colored tears and urineRashA vision test may be done before treatment so your doctor can monitor any changes in your eyes' health over time.Calling your health care providerCall your health care provider if:You have been exposed to TBYou develop symptoms of TBYour symptoms continue despite treatmentNew symptoms developPreventionTB is a preventable disease, even in those who have been exposed to an infected person. Skin testing (PPD) for TB is used in high risk populations or in people who may have been exposed to TB, such as health care workers.A positive skin test indicates TB exposure and an inactive infection. Discuss preventive therapy with your doctor. People who have been exposed to TB should be skin tested immediately and have a follow-up test at a later date, if the first test is negative.Prompt treatment is extremely important in controlling the spread of TB from those who have active TB disease to those who have never been infected with TB.Some countries with a high incidence of TB give people a BCG vaccination to prevent TB. However, the effectiveness of this vaccine is controversial and it is not routinely used in the United States.People who have had BCG may still be skin tested for TB. Discuss the test results (if positive) with your doctor.ReferencesIseman MD. Tuberculosis. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 345.