Now a day father of technology is quantum.
Quantum computer is faster than super computer. Quantum mechanics will the future of technology. It will develop more efficiency system.
What is quantum physics in the most layman terms?
Suppose you are driving a car, and I ask you how fast you are going. You might say something like, "My speed is 50 kilometers per hour". That is because speed is a quantity that we associate with numbers. Then, I might ask you "Where are you?" Your response might be "I am in Singapore," which is more accurately described as being at latitude 1.290270 and longitude 103.851959. Again, we associate the position with numbers. The position and speed of an object are examples of what physicists refer to as observables: things that can be measured directly.
For hundreds of years, up until about 1900, physicists constructed predictive models of nature on the assumption that observables were simply numbers, that can be determined absolutely at any instant by a sufficiently accurate measurement. And by knowing the right combination of observables at that instant, we can plug them into some equations to predict what those observables will be in the future. This worked very well for most systems of interest though the 19th century. However, as we started studying smaller and smaller systems, we found some peculiar behavior. Namely, the observables of sub-atomic systems seemed to be randomized. Even if you knew the values of the right combination of observables at some point in time, the predictions given by classical (pre-quantum) physics were often completely wrong at very small scales. Moreover, it was soon realized that there was no way to fix classical physics to make it more accurate. It was simply doomed and our understanding of nature and observables needed a complete overhaul.
The key realization that forms the cornerstone of modern quantum physics is that, at the most fundamental level, observables, like position and speed, are not numbers. They are operators. An operator is a mathematical construct that transforms one object into another. For analogy, your car mechanic is like an operator: he/she turns (broken down) cars into (fixed) cars. The key point is that an operator acts on something. So, if observables are operators, what do they act on? They act on an object called the wavefunction, which contains all of the information about the physical state of that system. The really strange thing is that when we make a measurement of an observable, we do not see the operator; for some reason we do no have direct access to this - all we get is a random number. The likeliness or probability of obtaining a particular number from a measurement of an observable is determined by the wavefunction.
And so, quantum physics is entirely based on the relationship between the wavefunction and the observable operators. Fortunately, the wavefunction itself is deterministic. If you know the wavefunction at any point in time, you can calculate what the wavefunction will be at any point in the future. Thus, despite the apparent randomness of the numerical quantities that we associate with observables, the probability of obtaining a particular number from a measurement can be predicted with great accuracy. This is the focus of modern physics.