"There is now a significant body of results on quantum interactions with closed timelike curves (CTCs) in the quantum information literature, for both the Deutsch model of CTC interactions (D-CTCs) and the projective model (P-CTCs). As a consequence, there is a prima facie argument exploiting entanglement that CTC interactions would enable superluminal and, indeed, effectively instantaneous signaling. In cases of spacelike separation between the sender of a signal and the receiver, whether a receiver measures the local part of an entangled state or a disentangled state to access the signal can depend on the reference frame. We propose a consistency condition that gives priority to either an entangled perspective or a disentangled perspective in spacelike-separated scenarios. For D-CTC interactions, the consistency condition gives priority to frames of reference in which the state is disentangled, while for P-CTC interactions the condition selects the entangled state. Using the consistency condition, we show that there is a procedure that allows Alice to signal to Bob in the past via relayed superluminal communications between spacelike-separated Alice and Clio, and spacelike-separated Clio and Bob. This opens the door to time travel paradoxes in the classical domain. Ralph [T. C. Ralph, arXiv:1107.4675 [quant-ph].] first pointed this out for P-CTCs, but we show that Ralph's procedure for a “radio to the past” is flawed. Since both D-CTCs and P-CTCs allow classical information to be sent around a spacetime loop, it follows from a result by Aaronson and Watrous [S. Aaronson and J. Watrous, Proc. R. Soc. A 465, 631 (2009)] for CTC-enhanced classical computation that a quantum computer with access to P-CTCs would have the power of PSPACE, equivalent to a D-CTC-enhanced quantum computer."
Making Star Trek Real
Internet Science Education Project
“The future, and the future alone, is the home of explanation.”
Henry Dwight Sedgwick
“Sarfatti's Cave is the name I'll give to the Caffe Trieste in San Francisco, where Jack Sarfatti, Ph.D. in physics, writes his poetry, evokes his mystical, miracle-working ancestors, and has conducted a several-decade-long seminar on the nature of reality … to a rapt succession of espresso scholars. ... It's Jack Sarfatti against the world, and he is indomitable. …One of his soaring theories is that things, which have not happened, yet can cause events in the present. … Cornell University B.A. , University of California Ph.D., his credentials are impeccable. Following is a quotation from a Lecture given to a San Francisco State physics seminar on 30 April 1991:
CAUSALITY VIOLATING QUANTUM ACTION AT A DISTANCE
By Dr. Jack Sarfatti
The universe is created by intelligent design but the Designer lives in our far future and has evolved from us … Perhaps, all the works of cultural genius, from the music of Mozart to the physics of Einstein, have their real origin in the future. The genius may be a real psychic channeler whose mind is open to telepathic messages from the future. The genius must be well trained in his or her craft and intellectually disciplined with the integrity of the warrior in order to properly decode the quantum signals from the future. The purpose of our existence would then be to ensure, not only the creation of life on earth, but also the creation of the big bang itself! We obviously cannot fail since the universe cannot have come into existence without us in this extreme example of Borgesian quantum solipsism [bolstered by John Archibald Wheeler’s “observer-participator” and “the universe as a self-excited circuit]. Existentialism is wrong because it is an incorrect extrapolation of the old physics. Breton’s surrealism, with its Jungian idea of meaningful coincidence, is closer to the truth. This would then be the final secret of the Illuminati – that charismatic chain of adepts in quixotic quest of their ‘Impossible Dream’ of the Grail. Enough of my subjective vision. Now on to the objective physics. Gold, Herbert. Bohemia: Where Art, Angst, Love & Strong Coffee Meet.
Love the last line:
Coffee lust ~ Effect Soul
There is now a significant body of results on quantum interactions with closed timelike curves (CTCs) in the quantum information literature, … As a consequence, there is a prima facie argument exploiting entanglement that CTC interactions would enable superluminal and, indeed, effectively instantaneous signaling. …. Using the consistency condition, we show that there is a procedure that allows Alice to signal to Bob in the past via relayed superluminal communications between spacelike-separated Alice and Clio, and spacelike-separated Clio and Bob. This opens the door to time travel paradoxes in the classical domain … offering a possible window on what we might expect in a future theory of quantum gravity. Quantum interactions with closed timelike curves and superluminal signaling, Jeffrey Bub and Allen Stairs, PHYSICAL REVIEW A 89, 022311 (2014)
‘In this case, Bob possesses the unknown state even before Alice implements the teleportation. Causality is not violated because Bob cannot foresee Alice’s measurement result, which is completely random. But, if we could pick out only the proper result, the resulting “projective” teleportation would allow us to travel along spacelike intervals, to escape from black holes, or to travel in time.” Seth Lloyd et-
This is a series of blog essays about teleological destiny, quick time travel to colonize Earthlike exoplanets through stargates, and the possibility that we are three-dimensional hologram images in a virtual reality programmed by a cosmological conscious super-intelligence that is alive and well on our future two-dimensional dark energy edge of space that we can ever hope to see with light signals. My speculative hypothesis-conjecture of this book is that our idea of time and cause and effect is profoundly wrong. In particular the “unproven theorem paradox” of time travel is not a paradox at all.
“The “unproved theorem” paradox points out that if there are CTCs, then it might be possible to take a published proof of a theorem into the past and present it to someone, who then uses it to produce the very manuscript that leads to the theorem’s publication Bub & Stairs op-cit
Evidence on “brain presponse” (Libet, Radin, Bierman, Bem) suggests that our consciousness and creativity are such meme self-creating strange loops. The universe does only not emerge out of the past, but is also pulled toward the future for a purpose. This idea is not new in philosophy, but has reappeared in physics starting with the work of John Archibald Wheeler and Richard Feynman in the 1940s. This back-from-the-future effect is needed to understand the nature of both dark matter and dark energy that is most of the stuff in our accelerating universe and most importantly to understand our own consciousness and how to reach the stars and beyond.
Lots of science in this one but the basic is in the beginning
If even a small quotient of the above is correct...It's all clear, you were meant to be here!
Time travel experiment demonstrates how to avoid the grandfather paradox
And last for the day, add this video to that information and how you say...
Listen to what William Henry says in the first part of this video. The rest is pretty interesting as well.