One of the main difficulties of quantum computation is that decoherence destroys the information in a quantum computer. On the basis of Shor's P W work,this paperproposes a way of storing an arbitrary state of K qubits by using 6K qubits encoded and performing unitary transformation by electromagnetic wave tipping pulse, so that the effects ofdecoherence in quantum memory cam be further reduced.
From the optical lithography aspect of manufacturing Microprocessor,through the optical lithography status and the limits that microprocessor will be difficult to overstep,and discuss the direction of the future computer,the nanoelectronic technology and parallel technology will be adopted,and it's developing direction will be quanta computer.
The computer development tends to super rapid,subminiature,parallel processing and intellectualization directions,the quanta,photon,molecule and nanometer computers will have sense,thought,judgment,study and capacity of natural languages,which can make the computer enter an artificial intelligence epoch.
We study the tensor category of tilting modules over a quantum groupUq with divided powers.
Using the theory of crystal bases as the main tool, we prove a quantum analogue of Richardson's theorem.
A Fock space is introduced that admits an action of a quantum group of type A supplemented with some extra operators.
In this article, we focus on a quantum detection problem, where the goal is to construct a tight frame that minimizes an error term, which in quantum physics has the interpretation of the probability of a detection error.
The coincidence image with coherent Gaussian beams is due to intensity-intensity correspondence, a classical nature, while that with entangled photon pairs is due to the amplitude correlation a quantum nature.