"Motivated by the question, which kind of physical interactions and processes are needed for the production of quantum entanglement, Peres has put forward the radical idea of delayed-choice entanglement swapping. There, entanglement can be "produced a posteriori, after the entangled particles have been measured and may no longer exist". In this work we report the first realization of Peres' gedanken experiment. Using four photons, we can actively delay the choice of measurement-implemented via a high-speed tunable bipartite state analyzer and a quantum random number generator-on two of the photons into the time-like future of the registration of the other two photons. This effectively projects the two already registered photons onto one definite of two mutually exclusive quantum states in which either the photons are entangled (quantum correlations) or separable (classical correlations). This can also be viewed as "quantum steering into the past"."
a ~650 GeV parent would, in a final state including leptons, possibly be in reach of ATLAS and CMS at LHC if it can be produced in high-energy quark and/or gluon interactions
john brunner's 1975 novel "shockwave rider" spent some time sketching out the social implications of a prediction market -- he called it a "delphi pool" and made it an integral part of the narrative -- a somewhat prosaic wikiview of the novel is at http://en.wikipedia.org/wiki/The_Shockwave_Rider -- if you are interested in this topic, the novel is worth the read -- it is often labeled as the grand-daddy of cyber-punk and came off the presses ~10 years before neuromancer -- brunner's previous books "stand on zanzibar" and "the sheep look up" at least stylistically touch on some of the same topics as "shockwave rider" but never give these concepts explicit name -- the previous books were hugo/nebula winners/nominees
"Section 43(a)(1)(B) is also often utilized in law when false or misleading statements are alleged to have hurt a business. To be proven in court a claimant must satisfy 3 principles: There was a false or misleading statement made, the statement was used in commercial advertising or promotion, and the statement creates a likelihood of harm to the plaintiff."
i believe linux and other FOSS is protected under the law to the extent that it is trademarked -- therefore, the holder of the linux trademark (the linux mark institute?) among others should have standing to file against microsoft
after abandoning careers in market/advertising/PR and computing consulting, i returned to college and, starting from the bottom, obtained a physics BS at age 35, a master's at 37 and a Ph.D. in experimental high-energy physics at 44 -- i'm currently a post-doc and will start searching for a real job either in academia or national labs (not necessarily in the US) starting this summer -- moreover, it seems reasonably realistic to believe that i can obtain such a permanent position
however, that said, there is an age bias built into the system and you additionally must be willing to accept drastically reduced earnings expectations over the (hopefully long!) time span of the rest of your life
however, my life is infinitely richer now than it might have ever been had i stayed in the business of business
[disclaimer: i am an experimental high-energy physicist -- i am not an "expert" on GR but it's a sucker bet that i know more about GR than most of y'all do]
i've gone through the lengthy lecture presentations and mayer meets the (or at least my) criteria for good science from a theorist -- he makes specific predictions which can be tested against empirically obtained datasets -- however, i didn't do the nasty integrals required to be done to see if he was simply lying and i will have to take him at his word that he has done them
essentially, the kernel of his hypothesis is contained at page 32 of his "lecture 1" pdf -- it is a small correction (in the weak-field approximation if i grok correctly) of the underlying metric which is the differential element which is used in standard GR calculations
*everything* in GR depends on the metric -- if mayer's metric can be empirically (or theoretically) motivated and, while using the differential geometry/GR mathematical machinery accrued over the last century or so, it can provide a more close approximation to empirical results than standard GR, then it is valid and more than worthy of further consideration
mayer provides a *very* long list of predictions about phenomena where standard GR predictions have failed to match the data and each of his predictions seems more or less rigorously derived from his singular assumption -- whether he has published or not (and a spires search did not yield any publications), and whether he is a post-doc, professor, grad student or invertebrate, he makes no appeal to authority (as i somewhat do in this posting) -- he only asks that his predictions be tested against unbiasedly observed reality
yo, gotta go --- i see it's super bowl time, chips and beer are waiting...
it is simply *not* difficult to collaborate in non-local ways on nearly all abstract topics (i.e., those which involve only the creation or re-organization of information in electronic form) -- i am a member of a high-energy physics collaboration (babar) involving ~600 physicists and our collaborators are located across the planet in china, novosibirsk, central and western europe and the u.s., while our experimental facility (slac) is located in the san francisco bay area
the only problem (and it is a not a major one) is timezone issues in scheduling meetings that are accessible to everyone in the non-wee hours of their morning -- the only issue i see is the robustness of a fat pipe connecting you to where-ever your work-product need to be and to your collaborators -- if bali can provide that connection and offers you a sweetness of existence that is missing in london, then it's time for you to head out
one thorny problem that may lurk, however, is one of constrained access -- i.e., if bali decides (as, for example, china does) to control your www access in an omnipresent governmental manner
20 years of windows forms -- where are we when the best and brightest of us spend their lives in such minutiae? coding skills such as this could have provided *real* tools rather than interfaces for the entertainment of the masses of computer slaves -- perhaps that is unfair but...
a most basic lack in the visual representation of these "objects" is the lack of *relationship* -- quarks *cannot* exist in isolation in our dimensioned universe, just as leptons (in the understanding of them as point particles) *must* be "dressed" by virtual interactions -- reducing quarks and leptons to static visual representations is a dis-service at both the PR and substantive levels (interestingly enough, before i was a HEP, i was a PR flack -- life is so strange)
it is not the "objects" but the "operators" that connect them that contain nearly all the wonder and understanding -- the representation (visual, sonic, olfactory, mathematical or what-have-you) of a quark or lepton is interesting and useful only insofar as it leads to a deeper understanding of the way they are embedded into the whole world -- this depth of understanding seems to me to be the goal of both interesting art and science, and it does not seem to be well served by the images offered here
to my mind (viz. IMHO), feynman diagrams are a deeper and truer art in the sense that they evoke the underlying nature of the thing they purport to represent -- think of feynman diagrams in the same sense as picasso's line art -- the only difference i see is that picasso drew up in us the things we (or nearly all of we) share in our wordless hearts while feynman created a method of seeing new things in a way that leveraged old visual understandings -- feynman's vision (his *notation*) will only be superseded in the sense that newton's representation of gravitational interaction is superseded by einstein's -- the images presented here lack this deeper nature
mod to this suggestion: use your current employer's interest to gain *experience* in this area and then go free lance and make the big bucks this guy is alluding to
a similar experience a few years ago with VA Linux: a large hep-ex collaboration bought several *hundred* VA linux dual-CPU rackmount systems -- dual-CPU usage was not possible because of on-board cooling issues which were difficult to resolve -- it ended up being an egregious abuse of (u.s. and european) tax dollars
Slashdot Mirror
"Motivated by the question, which kind of physical interactions and processes are needed for the production of quantum entanglement, Peres has put forward the radical idea of delayed-choice entanglement swapping. There, entanglement can be "produced a posteriori, after the entangled particles have been measured and may no longer exist". In this work we report the first realization of Peres' gedanken experiment. Using four photons, we can actively delay the choice of measurement-implemented via a high-speed tunable bipartite state analyzer and a quantum random number generator-on two of the photons into the time-like future of the registration of the other two photons. This effectively projects the two already registered photons onto one definite of two mutually exclusive quantum states in which either the photons are entangled (quantum correlations) or separable (classical correlations). This can also be viewed as "quantum steering into the past"."
hi,
i agree -- the means do indeed raise questions -- the evidence hints at ... hmmm ... ?
it surely does seem like a feint ...
cheers,
kevin
hi,
a ~650 GeV parent would, in a final state including leptons,
possibly be in reach of ATLAS and CMS at LHC if it can be
produced in high-energy quark and/or gluon interactions
cheers,
kevin
hi,
john brunner's 1975 novel "shockwave rider" spent some time sketching out the social implications of a prediction market -- he called it a "delphi pool" and made it an integral part of the narrative -- a somewhat prosaic wikiview of the novel is at http://en.wikipedia.org/wiki/The_Shockwave_Rider -- if you are interested in this topic, the novel is worth the read -- it is often labeled as the grand-daddy of cyber-punk and came off the presses ~10 years before neuromancer -- brunner's previous books "stand on zanzibar" and "the sheep look up" at least stylistically touch on some of the same topics as "shockwave rider" but never give these concepts explicit name -- the previous books were hugo/nebula winners/nominees
ciao ciao,
kevin
IANAL IAHEP
r _III:
the lanham act (15 USC 1125) is intended to protect companies from assertions such as those that microsoft is making with respect to FOSS -- from http://en.wikipedia.org/wiki/Lanham_Act#Subchapte
"Section 43(a)(1)(B) is also often utilized in law when false or misleading statements are alleged to have hurt a business. To be proven in court a claimant must satisfy 3 principles: There was a false or misleading statement made, the statement was used in commercial advertising or promotion, and the statement creates a likelihood of harm to the plaintiff."
i believe linux and other FOSS is protected under the law to the extent that it is trademarked -- therefore, the holder of the linux trademark (the linux mark institute?) among others should have standing to file against microsoft
hi,
after abandoning careers in market/advertising/PR and computing consulting, i returned to college and, starting from the bottom, obtained a physics BS at age 35, a master's at 37 and a Ph.D. in experimental high-energy physics at 44 -- i'm currently a post-doc and will start searching for a real job either in academia or national labs (not necessarily in the US) starting this summer -- moreover, it seems reasonably realistic to believe that i can obtain such a permanent position
however, that said, there is an age bias built into the system and you additionally must be willing to accept drastically reduced earnings expectations over the (hopefully long!) time span of the rest of your life
however, my life is infinitely richer now than it might have ever been had i stayed in the business of business
good luck!
hi,
...
[disclaimer: i am an experimental high-energy physicist -- i am not an "expert" on GR but it's a sucker bet that i know more about GR than most of y'all do]
i've gone through the lengthy lecture presentations and mayer meets the (or at least my) criteria for good science from a theorist -- he makes specific predictions which can be tested against empirically obtained datasets -- however, i didn't do the nasty integrals required to be done to see if he was simply lying and i will have to take him at his word that he has done them
essentially, the kernel of his hypothesis is contained at page 32 of his "lecture 1" pdf -- it is a small correction (in the weak-field approximation if i grok correctly) of the underlying metric which is the differential element which is used in standard GR calculations
*everything* in GR depends on the metric -- if mayer's metric can be empirically (or theoretically) motivated and, while using the differential geometry/GR mathematical machinery accrued over the last century or so, it can provide a more close approximation to empirical results than standard GR, then it is valid and more than worthy of further consideration
mayer provides a *very* long list of predictions about phenomena where standard GR predictions have failed to match the data and each of his predictions seems more or less rigorously derived from his singular assumption -- whether he has published or not (and a spires search did not yield any publications), and whether he is a post-doc, professor, grad student or invertebrate, he makes no appeal to authority (as i somewhat do in this posting) -- he only asks that his predictions be tested against unbiasedly observed reality
yo, gotta go --- i see it's super bowl time, chips and beer are waiting
cheers,
kevin
hey now,
it is simply *not* difficult to collaborate in non-local ways on nearly all abstract topics (i.e., those which involve only the creation or re-organization of information in electronic form) -- i am a member of a high-energy physics collaboration (babar) involving ~600 physicists and our collaborators are located across the planet in china, novosibirsk, central and western europe and the u.s., while our experimental facility (slac) is located in the san francisco bay area
the only problem (and it is a not a major one) is timezone issues in scheduling meetings that are accessible to everyone in the non-wee hours of their morning -- the only issue i see is the robustness of a fat pipe connecting you to where-ever your work-product need to be and to your collaborators -- if bali can provide that connection and offers you a sweetness of existence that is missing in london, then it's time for you to head out
one thorny problem that may lurk, however, is one of constrained access -- i.e., if bali decides (as, for example, china does) to control your www access in an omnipresent governmental manner
cheers,
kevin
aiko aiko,
...
20 years of windows forms -- where are we when the best and brightest of us
spend their lives in such minutiae? coding skills such as this could have provided
*real* tools rather than interfaces for the entertainment of the masses of computer
slaves -- perhaps that is unfair but
hey now,
[disclaimer: IAAHEP]
a most basic lack in the visual representation of these "objects" is the lack of *relationship* -- quarks *cannot* exist in isolation in our dimensioned universe, just as leptons (in the understanding of them as point particles) *must* be "dressed" by virtual interactions -- reducing quarks and leptons to static visual representations is a dis-service at both the PR and substantive levels (interestingly enough, before i was a HEP, i was a PR flack -- life is so strange)
it is not the "objects" but the "operators" that connect them that contain nearly all the wonder and understanding -- the representation (visual, sonic, olfactory, mathematical or what-have-you) of a quark or lepton is interesting and useful only insofar as it leads to a deeper understanding of the way they are embedded into the whole world -- this depth of understanding seems to me to be the goal of both interesting art and science, and it does not seem to be well served by the images offered here
to my mind (viz. IMHO), feynman diagrams are a deeper and truer art in the sense that they evoke the underlying nature of the thing they purport to represent -- think of feynman diagrams in the same sense as picasso's line art -- the only difference i see is that picasso drew up in us the things we (or nearly all of we) share in our wordless hearts while feynman created a method of seeing new things in a way that leveraged old visual understandings -- feynman's vision (his *notation*) will only be superseded in the sense that newton's representation of gravitational interaction is superseded by einstein's -- the images presented here lack this deeper nature
cheers,
kevin (as if you didn't already know!)
it looks like money for "content providers:
hi,
mod to this suggestion: use your current employer's
interest to gain *experience* in this area and then
go free lance and make the big bucks this guy is
alluding to
cheers!
a similar experience a few years ago with VA Linux: a large hep-ex collaboration bought several *hundred* VA linux dual-CPU rackmount systems -- dual-CPU usage was not possible because of on-board cooling issues which were difficult
to resolve -- it ended up being an egregious
abuse of (u.s. and european) tax dollars