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Q-bit data transfer efficiency

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Fri, 2013-09-06 07:50

thezombiekat thezombiekat's picture

Q-bit data transfer efficiency

Q-bit data transfer efficiency As expensive as quantum entangled particles are it course to me that there efficient use would be a priority. Warning some computer jargon follows Instead of using each entangled particle to transmit one bit of information I believe that you can send a word consisting of several bites with each entangled particle. First assign each pair of entangled particles a number starting at 0,1,2,3,… ensure that both devices agree on the numbers. When you wish to transmit some information break it into words of a agreed length (say 5 bites of 8 bits) if this data is interpreted as a unsigned integer it is a number between 0 and 1.1 trillion (10^12) we will call this number N. Now to transmit the word you activate only the entangled particle at position which you previously numbered N. the receiving computer will know exactly what 5 bites of information you wished to transmit. To correct for the gap in our sequence of entangled particles all the particles numbered greater than N have their number reduced by 1 This dose of cause require that you keep a buffer of 1.1 trillion entangled particles, once you drop below that you need to reduce your word size. Streaming a conference call would require uncompressed video and a small reservoir is good for 10 hours. At current standards 180p 10 hours would be 1194 trilion bits (probably more in the future)

EP p315 wrote:
QE communication requires pairs of entangled particles known as qubits. … Each bit of data transmitted between these two QE comms uses up one qubit.

Therefore the listed small reservoir contains 1194 trilion bits. After the modification it is able to transmit 10.89 trilion hours of video While this may use slightly more processor power than the way the book describes cheep gaming consoles of the early 21st century could still render the video in real time.

Fri, 2013-09-06 08:20

Armoured

Its an assumed state of the

Its an assumed state of the setting that computer power and technology is arbitrarily greater than the modern day; this is to avoid the problem of reality overtaking the setting tech (a common problem with speculative fiction). Thus, we can assume that such techniques, and possibly even better ones that have not yet been discovered, have already been integrated into communication and data storage techniques. The 10-hour limit on small reservoirs is arbitrary, but it sets a standard for game structure. Cheap, vast-bandwidth communication devices would significantly change the setting, as all habitat meshes could be linked into a hyper-mesh, and you could never be out of range of it. Your idea is a brilliant piece of information science theory, but unfortunately the fictional characters in the Eclipse Phase setting came up with it independently- I don't think you'll be able to get a patent on it. :)

Fri, 2013-09-06 09:26

thezombiekat thezombiekat's picture

Well said and that was how I

Well said and that was how I planned to rule it in my game. It even works with the cost profiles (a large reservoir would need 3.32 times as many entangled particles and costs about 4 times as much It just disagrees with the book descriptions (as I quoted before) I should also admit that we may have made some errors in the math. It may only be *40 for a small reservoir and *48 for a large reservoir. If you have the capital to set up larger reservoir the cost to efficiency will continue to improve every time you multiply the number of entangled particles by 3.32 you multiply the data by 10 (because you can increase the word size). The cost of these extremely large reservoir would be exorbitant to set up. Pursuing this to the levels where your spending 10s of millions on start up costs you can get the cost to the provider of a 5 hour 2 way video conference between Mars and Luna down to 20 credits. If the provider charges 100 credits suddenly all inter planetary business will be carried out using this method, conference call now cheaper than ego cast. The only losers are those that invested heavily in other forms of long range communication. This is where I got into a disagreement with my housemate. I thought we could justify the lack of this by saying there are insufficient qbit production facilities. He thinks they could be made in a cornucopia machine so a hyper corp could easily build however many machines it would take to make that many qbits. I don’t think the debate on wether a cornucopia machine is good enough to make qbits Of if there is a rare feedstock required to make Qbit factories will end in a solid answer.

Fri, 2013-09-06 14:58

nerdnumber1 nerdnumber1's picture

You also have to monitor all

You also have to monitor all the Q-bits to get the exact order they send information to you (if someone pops the next bit before you've found the first, then you might be screwed). Monitoring the bits sequentially is easier in that respect. Whatever is the most practical and efficient use of Q-bits, assume that they are using that one for their calculations.