A Nobel Laureate explains quantum entanglement and teleportation
and why Einstein was wrong about the nature of realityWhat is the
true nature of reality? To find out, Nobel Laureate Anton Zeilinger
takes us (along with his fictional students Alice and Bob) on a
voyage through a quantum wonderland, explaining entanglement,
teleportation, time-travel paradoxes and why our view of the world
must change. Originally published in America in 2012, a new
Afterword in the light of the author's 2022 Nobel Prize means the
book brings readers up-to-date with the most recent developments in
quantum teleportation. This describes the author's collaboration to
perform the first intercontinental video call encrypted using
quantum cryptography, and how Chinese scientists teleported
entangled quantum states to an orbiting satellite.Readers also
learn how both volunteer humans and astronomical objects billions
of light years away have been part of experiments to conclusively
prove that quantum states cannot provide a full description of
reality at a local level. Einstein had always refused to accept
aspects of quantum theory, deriding the notion of instantaneous
communication between faraway 'entangled' particles as 'spooky
action at a distance'. However, this playful yet deep book takes
readers through a series of ingenious experiments conducted in
various locations that demonstrate entanglement is indeed real, and
speculates that information is an essential part of reality.From a
dank sewage tunnel under the River Danube to the balmy air between
a pair of mountain peaks in the Canary Islands, with various
time-travel paradoxes explained along the way, the author and his
fictional physics students Alice and Bob demonstrate the true
nature of quantum entanglement and teleportation using photons, or
light quanta, created by laser beams. The ideas described have laid
the foundations for a new era of quantum technology, including the
development of quantum computers and much more.
V januári 1965 Gabriel García Márquez cestoval s rodinou na
dovolenku do Acapulca, keď odrazu dostal nápad. Začul vravu
mestečka Macondo. Už vedel, ako napíše svoj nový román. Vrátil sa
domov, zatvoril sa do pracovne, a keď z nej po osemnástich
mesiacoch vyšiel, v ruke držal 1 300 strán rukopisu a bol šťastný.
Román Sto rokov samoty prvý raz vyšiel v roku 1967, Márquez mal
vtedy 39 rokov a svet si navždy zapamätal jeho meno. Dnes je román
považovaný za jedno z najvýznamnejších diel latinskoamerickej a
svetovej literatúry. Je komponovaný z množstva reálnych aj
fantazijných epizód a rozpráva o pôvabných i krutých príhodách
šiestich generácií rodiny Buendíovcov z fiktívneho mestečka
Macondo.
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