Dec 31, 2024 09:25 PM
https://www.sciencealert.com/physicists-...tanglement
EXCERPTS: Our physical Universe – where objects have very clearly defined properties like location, momentum, and energy – emerges from an unresolved version of reality consisting of maybes and likelihoods.
As uncertain as this existence is prior to being locked down by a measurement, the laws governing its operation are as strict as those of any casino. Interactions with additional particles can upset the odds as easily as an extra deck of cards could change how a game of poker is played.
[...] Mathematically speaking, it's possible to show some quantum transformations are more subtle than others. One type of change returns to a state that doesn't appear to be disturbed, for example. Described as a kind of catalyst, this reversal allows for computing operations that wouldn't have been possible in cases where end states are altered.
Where van Dam and Hayden demonstrated that catalysts could universally flip any entangled state on a whim, the researchers at Leibniz University have now algebraically demonstrated that a combination of general relativity and quantum field theory can result in a bottomless pit of catalysts.
In theory, a relativistic quantum field could serve as an infinite resource of embezzlement, entangling with particles in ways that wouldn't alter their delicate states.
"Since the bank is in the same state before and after the embezzlement, that means that no one can detect it," van Luijk explained to New Scientist's Karmela Padavic-Callaghan. "It's the perfect crime." (MORE - missing details)
RESEARCH PAPER: https://journals.aps.org/prl/accepted/32...82dab8b73f
EXCERPTS: Our physical Universe – where objects have very clearly defined properties like location, momentum, and energy – emerges from an unresolved version of reality consisting of maybes and likelihoods.
As uncertain as this existence is prior to being locked down by a measurement, the laws governing its operation are as strict as those of any casino. Interactions with additional particles can upset the odds as easily as an extra deck of cards could change how a game of poker is played.
[...] Mathematically speaking, it's possible to show some quantum transformations are more subtle than others. One type of change returns to a state that doesn't appear to be disturbed, for example. Described as a kind of catalyst, this reversal allows for computing operations that wouldn't have been possible in cases where end states are altered.
Where van Dam and Hayden demonstrated that catalysts could universally flip any entangled state on a whim, the researchers at Leibniz University have now algebraically demonstrated that a combination of general relativity and quantum field theory can result in a bottomless pit of catalysts.
In theory, a relativistic quantum field could serve as an infinite resource of embezzlement, entangling with particles in ways that wouldn't alter their delicate states.
"Since the bank is in the same state before and after the embezzlement, that means that no one can detect it," van Luijk explained to New Scientist's Karmela Padavic-Callaghan. "It's the perfect crime." (MORE - missing details)
RESEARCH PAPER: https://journals.aps.org/prl/accepted/32...82dab8b73f