Quantom computers

[AverageJoe]

is any device for computation that makes direct use of distinctively quantum mechanical phenomena, such as superposition and entanglement, to perform operations on data. In a classical (or conventional) computer, the amount of data is measured by bits; in a quantum computer, the data is measured by qubits. The basic principle of quantum computation is that the quantum properties of particles can be used to represent and structure data, and that quantum mechanisms can be devised and built to perform operations with these data.[1]

 

Though quantum computing is still in its infancy, experiments have been carried out in which quantum computational operations were executed on a very small number of qubits. Research in both theoretical and practical areas continues at a frantic pace, and many national government and military funding agencies support quantum computing research to develop quantum computers for both civilian and national security purposes, such as cryptanalysis.[2] (See Timeline of quantum computing for details on current and past progress.)

 

It is widely believed that if large-scale quantum computers can be built, they will be able to solve certain problems exponentially faster than any classical computer. Quantum computers are different from other computers such as DNA computers and computers based on transistors, even though these may ultimately use some kind of quantum mechanical effect (for example covalent bonds). Some computing architectures such as optical computers may use classical superposition of electromagnetic waves, but without some specifically quantum mechanical resource such as entanglement, they do not share the potential for computational speed-up of quantum computers.

 

A classical computer has a memory made up of bits, where each bit holds either a one or a zero. The device computes by manipulating those bits, i.e. by transporting these bits from memory to (possibly a suite of) logic gates and back. A quantum computer maintains a vector of qubits. A qubit can hold a one, a zero, or, crucially, a superposition of these. A quantum computer operates by manipulating those qubits, i.e. by transporting these bits from memory to (possibly a suite of) quantum logic gates and back.

 

An example of an implementation of qubits for a quantum computer would be the use of particles with two spin states: "up" and "down" (typically written |0\rangle and |1\rangle). But in fact any system possessing an observable quantity A which is conserved under time evolution and such that A has at least two discrete and sufficiently spaced consecutive eigenvalues, is a suitable candidate for implementing a qubit. That's because any such system can be mapped onto an effective spin-1/2.

What do you think? Please respond with some info, not just a "thats cool"

Thanks

[Quantum Media LLC]

is any device for computation that makes direct use of distinctively quantum mechanical phenomena, such as superposition and entanglement, to perform operations on data. In a classical (or conventional) computer, the amount of data is measured by bits; in a quantum computer, the data is measured by qubits. The basic principle of quantum computation is that the quantum properties of particles can be used to represent and structure data, and that quantum mechanisms can be devised and built to perform operations with these data.[1]

 

Though quantum computing is still in its infancy, experiments have been carried out in which quantum computational operations were executed on a very small number of qubits. Research in both theoretical and practical areas continues at a frantic pace, and many national government and military funding agencies support quantum computing research to develop quantum computers for both civilian and national security purposes, such as cryptanalysis.[2] (See Timeline of quantum computing for details on current and past progress.)

 

It is widely believed that if large-scale quantum computers can be built, they will be able to solve certain problems exponentially faster than any classical computer. Quantum computers are different from other computers such as DNA computers and computers based on transistors, even though these may ultimately use some kind of quantum mechanical effect (for example covalent bonds). Some computing architectures such as optical computers may use classical superposition of electromagnetic waves, but without some specifically quantum mechanical resource such as entanglement, they do not share the potential for computational speed-up of quantum computers.

 

A classical computer has a memory made up of bits, where each bit holds either a one or a zero. The device computes by manipulating those bits, i.e. by transporting these bits from memory to (possibly a suite of) logic gates and back. A quantum computer maintains a vector of qubits. A qubit can hold a one, a zero, or, crucially, a superposition of these. A quantum computer operates by manipulating those qubits, i.e. by transporting these bits from memory to (possibly a suite of) quantum logic gates and back.

 

An example of an implementation of qubits for a quantum computer would be the use of particles with two spin states: "up" and "down" (typically written |0\rangle and |1\rangle). But in fact any system possessing an observable quantity A which is conserved under time evolution and such that A has at least two discrete and sufficiently spaced consecutive eigenvalues, is a suitable candidate for implementing a qubit. That's because any such system can be mapped onto an effective spin-1/2.

What do you think? Please respond with some info, not just a "thats cool"

Thanks

 

Lol i dont get it but ok

[AverageJoe]

It seems like there's a good chance the technology's viable (the first attempt at making one is being done in Canada these days, I hear), but it won't be for personal computing any time soon, and quite possibly never. The [bleeped!] is much too complicated and expensive.

I don't understand how it's supposed to work, still.. If I'm not mistaken the whole point is to represent data probabilistic instead of as bits, meaning a [bleeped!] near infinite amount of data can be processed in a single operation.

[Noxious]

It seems like there's a good chance the technology's viable (the first attempt at making one is being done in Canada these days, I hear), but it won't be for personal computing any time soon, and quite possibly never. The [bleeped!] is much too complicated and expensive.

I don't understand how it's supposed to work, still.. If I'm not mistaken the whole point is to represent data probabilistic instead of as bits, meaning a [bleeped!] near infinite amount of data can be processed in a single operation.

 

Any idea where in Canada?

[AverageJoe]

Don't quite remember, why you live there?

Does anybody else know anything about them?

[Mystical Water]

The information must be precised so one can understand easily. Please shorten the information.

[Dragonfire]

I searched for quantum computers but couldn't understand what it meant. This is the info I found:-

 

A quantum computer is any device for computation that makes direct use of distinctively quantum mechanical phenomena, such as superposition and entanglement, to perform operations on data.

[joemama718]

i dont understand them completely, but i know that by using qubits, a qubit can represent 0, 1, or both at the same time, thus dramatically changing computing...