https://eprints.bbk.ac.uk/id/eprint/25270/8/25270a.pdf
The article then goes on to ask why paraphysics interested these scientists. I will argue
that it is important to ask why this unfashionable scientific theory was attractive to
these men as scientists.Hasted and Bohm announced that the ‘human mind’ was
capable of ‘distorting matter on the atomic and molecular level through activity
patterns of the brain’. They were confident that the data they and other physicists
were collecting would eventually be so extensive that there would be ‘no room for
reasonable doubt that some new process is involved here, which cannot be accounted
for or explained in terms of present known laws of physics’.43 Bohm’s earlier caution
was also thrown to the wind. When he was finally allowed to return to the United
States in 1977, he told a packed Berkeley physics audience of the results of these
Birkbeck experiments with the ‘psychic wunderkind, Uri Geller’. As one commenta-
tor noted, the ‘much-revered quantum physicist held up several pieces of bent metal
for his audience of fellow physicists to eagerly peruse’ and ‘For a moment the unthink-
able seemed thinkable—that the paradoxes of quantum mechanics might be connected
to the field of parapsychology.’44
As early as April 1975, Hasted, Bohm, Bastin, and O’Regan hit
back in the pages of Nature. They implored scientists to maintain an open mind as to
whether there was some ‘force, energy or mode of connection’ that was ‘at present
unknown’.105 After all, they reminded critics, ‘when magnetic and electrostatic effects
were first observed’, it had also been ‘impossible to account for them in terms of the
known forces’.
His friend and collaborator, Basil Hiley,
recalled attending protracted meetings at Birkbeck where colleagues debated whether
Hasted should be silenced. Hiley believed that Hasted’s experiments were ‘sloppy’ and
lacked rigour. He was also ‘worried about the potential damage to the well-being of
the children involved particularly with the surrounding publicity’. In the end, how-
ever, the department concluded that academic freedom should be defended even in the
face of the most uncomfortable mockery.118
Personal interview and email exchange with Hiley, 29 June 2018 and 8 October 2018.
At Princeton University, Bohm worked
closely with Albert Einstein, but the university failed to renew his contract after he
refused to give evidence before the House Un-American Activities Committee. He
had been forced to leave America, for São Paulo, Haifa, Bristol, and then Birkbeck.
Bohm and
his collaborator Basil Hiley suggested that quantum laws applied equally to the
macroscopic world.
William Crookes, whose work on rarefied gases was in part motivated by the desire for his psychic research be taken seriously. To put Crookes in context, I recommend the recent book, Physics and Psychics: The Occult and the Sciences in Modern Britain, by Richard Noakes. As a second example, I look at the “Fundamental Fysiks Group” out of Berkely, California, in the 1970s and early 80s. Refuting group member Nick Herbert’s faster-than-light communication scheme led to the quantum no-cloning theorem, helping to shore up the basis of quantum cryptography. The book How the Hippies Saved Physics by David Kaiser tells this story well.
https://sidoli.w.waseda.jp/Kaiser_2011_2.pdf
https://repositori.uji.es/server/api/core/bitstreams/4a0854d8-d4fc-4542-ac01-e73c23846bde/content
In general, the nabla operator, ∇, and the vector potential , A, do not commute. However, the
vector potential gauge symmetry allows choosing a vector potential with zero divergence:
∇ ∙ 𝐴 = 0 (13)
This gauge is referred to as Coulomb gauge.
When the divergence of the vector potential is zero, then A and 𝑝̂ commute.
Nonstabilizerness, commonly referred to as magic, is a quantum property of states associated with the non-Clifford resources required for their preparation. As a resource, magic complements entanglement, and the interplay between these two concepts has garnered significant attention in recent years.
https://link.springer.com/article/10.1140/epjc/s10052-024-13182-x
due to the Aharonov–Bohm effect, leading to a perturbed system dynamics which results in asymmetric product of variance ().
https://journals.aps.org/pra/abstract/10.1103/PhysRevA.91.042103
Maximum nonlocality and minimum uncertainty using magic states
These results support the observation that some desirable conditions for fault tolerance are in tension with emergent gravity and suggest that non-local “magic” would play an important role in reproducing features of gravitational back-reaction and the quantum extremal surface formula.
https://link.springer.com/article/10.1007/JHEP11(2024)105
Non-trivial area operators require non-local magic
Although the encoding map in figure 3b doesn’t have a non-trivial kernel like the non-isometric codes
defined in [ 45 , 46 ], it still stipulates state-dependent reconstructions for certain operators and causes bulk qubits to “overlap” [12, 47, 48] in that the commutator of spacelike separated observables is non-vanishing.
A Non-Commuting Stabilizer Formalism
the latter [non-commuting] may have a completely differenthttps://arxiv.org/pdf/1404.5327
spectrum. This may turn out important for the purpose of quantum error
correction.
Other generalisations involving non-commuting stabiliser sets [27]
have demonstrated the ability to produce gate
sets which, while not universal, have enhanced
computation power.
https://quantum-journal.org/papers/q-2021-02-17-398/pdf/
In their original form, the local terms of these
Hamiltonians do not commute in a particular ex-
cited subspace of the Hilbert space, which makes
them – on first glance – unsuitable for stabilizer
error correction. Practically speaking, commutaivity is a highly desirable property in the context
of quantum error correction in that it allows for
error correction schemes based on independent lo-
cal measurements of such stabilizers without per-
turbing the stored quantum information. We re-
store commutativity by first deriving the quanti-
ties that obstruct this property from the group co-
homology data of twisted gauge theories. In most
cases – namely, for Abelian twisted quantum dou-
bles – these obstructions can be lifted completely
by carefully modifying the offending terms in the
Hamiltonian, yielding a true stabilizer code, con-
sisting of commuting non-Pauli operators.
https://www.nature.com/articles/s41467-024-54864-0
we link the shallow circuit computation with the strongest form of quantum nonlocality—quantum pseudo-telepathy, where distant non-communicating observers generate perfectly synchronous statistics. We prove quantum magic is indispensable for such correlated statistics in a specific nonlocal game inspired by the linear binary constraint system. Then, we translate generating quantum pseudo-telepathy into computational tasks, where magic is necessary for a shallow circuit to meet the target
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