Yes, an eigenstate is the same thing as an eigenvector belonging to a certain eigenvalue.
The difference is that you need to choose a basis for you state space to talk about matrices and vectors, while the notion of state is more abstract and doesn't refer to a particular basis.
The answer is correct but your reasoning is false.
You took a bad example. The electron spin can only take values of plus or minus one half relative to an arbitrary quantization axis. When you measure the electron spin, you always measure one of the two of possible states, meaning that you can store exactly one bit in the electron spin.
If you want to store more data in an electron, you have to use another physical quantity which has more possible states. (in qm jargon: Use an observable with has more (infinite) eigenstates). This is what the article talks about, they are using the "place" quantity (observable). As is easy to imagine, this observable has an infinity number of possible values (eigenstates): an electron can be anywhere.
I wouldn't worry too much if I were you. Open source video codecs will be difficult I think, but the windoze people don't have them either.
I see some future in using the binary windows.DLL's under wine. There's is already a.VQF (proprietary audio standard) plugin for xmms, using wine to execute a windows native.DLL. I figure the same can be done with the video codecs.
This has been possible for ages. If not the FBI, what about all the sysadmins at your ISP or people on your intranet. Just use strong encryption for everything. I don't see the problem. It is legal here in Holland.
I know it is illegal to export it from the USA, but is it also illegal to use it?
IMO a good compromise would be to allow strong encryption and to have a law which, after a warrant from a judge, forces people to give in the encryption key. A (heavy) punishment could be put on a refusal.
Bah. He stated his opinion. He's allowed to do that, isn't he? Just because his opinion touches a hot topic, should we put him under a gag order?
If that's the case places like slashdot should be shut down entirely. Sorry, I'm just tired of people tiptoeing around afraid to speak because they might be branded "offensive".
You're right. And wrong too. Giving your opinion is one thing. Being the leader of a project is another. In that position, one should be mature enough not spread unfounded statements (a.k.a. FUD).
Everytime I hear Miguel speaking, everytime I see him on the gnome lists, I wonder how the GNOME project has come so far...
Why does the music industry even think that it is possible to have a copyright preserving audio format? Nobody can stop me from decompressing it and recoding it to mp3. If you can play it, you can decompress it. I seems impossible to me to prevent this. My SB64 has a digital out or I could write a fake audio device driver which captures the digital data. Only one brave soul on the Internet has to buy the song and recode it.
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Yes, an eigenstate is the same thing as an eigenvector belonging to a certain eigenvalue.
The difference is that you need to choose a basis for you state space to talk about matrices and vectors, while the notion of state is more abstract and doesn't refer to a particular basis.
The answer is correct but your reasoning is false.
You took a bad example. The electron spin can only take values of plus or minus one half relative to an arbitrary quantization axis. When you measure the electron spin, you always measure one of the two of possible states, meaning that you can store exactly one bit in the electron spin.
If you want to store more data in an electron, you have to use another physical quantity which has more possible states. (in qm jargon: Use an observable with has more (infinite) eigenstates). This is what the article talks about, they are using the "place" quantity (observable). As is easy to imagine, this observable has an infinity number of possible values (eigenstates): an electron can be anywhere.
The Unix phylosophy is: "make things do one thing, and let them do it right". IMO this is one of the most important causes for the power of Unix.
And what's so difficult in using the 'z' switch to tar? Better to back to windows, then.
I wouldn't worry too much if I were you. Open source video codecs will be difficult I think, but the windoze people don't have them either.
.DLL's under wine. There's is already a .VQF (proprietary audio standard) plugin for xmms, using wine to execute a windows native .DLL. I figure the same can be done with the video codecs.
I see some future in using the binary windows
Something like every row in the db is a file and you can use the unix io primitives to access them.
A pity that it was over in 2 minutes :)
I know it is illegal to export it from the USA, but is it also illegal to use it?
IMO a good compromise would be to allow strong encryption and to have a law which, after a warrant from a judge, forces people to give in the encryption key. A (heavy) punishment could be put on a refusal.
SuSE seems to emploi Andrea Arcangeli, a well known, IMO very talented, kernel hacker.
If that's the case places like slashdot should be shut down entirely. Sorry, I'm just tired of people tiptoeing around afraid to speak because they might be branded "offensive".
You're right. And wrong too. Giving your opinion is one thing. Being the leader of a project is another. In that position, one should be mature enough not spread unfounded statements (a.k.a. FUD).
Everytime I hear Miguel speaking, everytime I see him on the gnome lists, I wonder how the GNOME project has come so far...
is this:
Why does the music industry even think that it is possible to have a copyright preserving audio format? Nobody can stop me from decompressing it and recoding it to mp3. If you can play it, you can decompress it. I seems impossible to me to prevent this. My SB64 has a digital out or I could write a fake audio device driver which captures the digital data.
Only one brave soul on the Internet has to buy the song and recode it.