Quantum Curiosity

I like to think the moon is there even if I am not looking at it. - Einstein.

Reference -Quantum Computing Explained ,By David McMahon

Introduction -With basic information processing units (qubits) governed by the phenomena of quantum mechanics, quantum computers have the potential to be far better at performing certain calculations than today's computers using conventional/classical 'bits'.

Unlike classical physics, quantum physics does not honor the same logic that applies to our everyday surroundings. Quantum particles follow a different set of laws.Every time, confusion between two things and decide to choose to go with one of them, the universe splits into two parts, where you choose other option in another universe. Quantum physics tell us nothing that is observed is unaffected by the observer.That statement, from science, hold an enormous and powerful insight. It means that everyone sees a different truth, because everyone is creating what they see.

Quantum Physics tells us that even in empty space, virtual particles are constantly created and destroyed. The fleeting particles endow every cubic centimetre of space with a certain energy that, according to general relativity, produces and antihgravitational force that pushes space apart. It says that as you go deeper and deeper in tnhe working of an atom, you will observe that its nothing but energy waves. It says atom is actually an invisible force of field, a kind os miniature tornado, which emits waves of electrical energy.

Loop Quantum Gravity(LQG) - It is a theory to unite Quantum Mechanics and general relativity. In LQG, space-time is a network.The background of Einstein's theory of gravity is replaced by nodes and links to which quantum properties are assigned. In this way, space is built up of discrete chunks. LQG is in large part is a study of these chunks.

Problem Of Quantum Computers- A quantum omputer is a computer using quantujm superpostion and quantum entanglement to improve its computing power.it is capable of solving certain tasks even a millio times faster than a classical computer. Despite its tremendous speed, quantum computers will probably never entirely replace classicalk computers. Any time a quantum system is observed, the wave function of the systm collapses. This means that anytime, we try to use the quantum computer, there would inevitably be an interaction between us and computer. This interaction would cause the superposition within the quantum computert to collapse, and its qubits qould suddenly become classical bits. So, they are only suitable fot complex computations. During the computation , they must be isolated from their surroundings to prevent superposition of their qubits from collapsing. A quantum computer basically divides sach problem into many simpler calculations, which it then solves in parallel. Once the computation is finished, the computer is observed, which it then solves in parallel. Once the computation is finished, the computer is observed, which causes its superposition to collapse, and it provides us with just one result.

Quantum Tunneling- It is a Quantum Mechanical effect. A tunneling current occurs when electrons move through a barrier which the classically shouldn't be able to move though. In Quantum Mechanical World, electrons have wavelike properties. These waves don't end abruptly at a wall or barrier, but they taper off quickly. If the barrier is thin enough, the probability function may extend into the next region, through the barrier! Because of the Quantum Computer small probability of an electron being on the other side of thr barrier, given enough electrons, some will indeed move through and appear on the other side. This is called "tunneling" which is an effect of the wavelike nature.

Operation on Qubits : Due to the nature of quantum physics, the destruction of information in a gate will cause heat to be evolved which can destroy the superposition of qubits.We must use quantum gates for this.