The coherence time of quantum dots is largely linked to their electromagnetic susceptibility (environmental interaction strength). Topological quantum computing is based upon the long coherence time of anyon pseudoparticle states.
Is there some known material which exhibits stable quasiparticle behavior in response to photonic excitation?
Or if not, what might such a material look like?
In my understanding you try to mix a term of classical physics (temperature) with QM.
As I know till now temperature is created by swinging molecules or atoms in an open or closed system.
You nominate QM pseudoparticle states and quasiparticle behavior. That's new in QM. All particles in QM are said to be real particles - but not measurable in legacy way - we need mathematical methods (statistic, probability, differential equations,...).
Your quantum state storage device would be an new artificial particle and would be - of course - the since decades desired clear switchable element of a quantum computer.
Photonic excitations seem not to be able to serve usable and steerable states. As I know - in other direction - photons perhaps can steer other particles in their habit (spin, polarisation-direction of electrons).
If I generally misunderstand you please give more details about your ideas.
In general, quantum phenomenon at room temperature is NOT possible to control. Therefore, stable state is NOT possible to achieve at room temperature. However, the phenomenon such as NMR can be possible to control at room temperature and it is possible to achieve stable state using NMR. For example, you may take a look at: "A Realization Scheme for Half-adder at Room Temperature by Two Transition Pulses in NMR Quantum Information Processing". The details of the material used is given there. Note that NMR is NOT is scalable.
Arijit, Franz:
I am attempting to build such a statistical description of quantum mechanics within a solid, such that the movement and behavior of large-scale quantized behavior can be understood and applied. As it stands, the best we have in this regard is NMR, but it relies on something different than what I have in mind.
NMR uses electromagnetic pulses to target specific magnetic moments of complex molecules in a strong magnetic field; given the known resonance of a particular section, it can be manipulated, and the molecule can be used as a circuit of some sort. Operations result due to inner-molecular interactions, and as these are probabilistic, the final measurement has to be done many times - or just over a lot of samples.
Like Arijit is saying, NMR is NOT scalable. We just don't have the resolution necessary, nor the magnetic field strengths desired. It's also slow. The principles behind it however, of using molecules themselves as storage and logic gate structures, is a big part of what I'm trying to learn, just from the perspective of condensed matter, rather than molecular dynamics.
I'll be sure to check out more NMR papers though, it is certainly a good building block. Thank you both :)
- Badges
- Science topic
- Similar topics
- Physics
- Condensed Matter Physics