We may be on the cusp of quantum supremacy. But what does that actually mean?
Category: quantum physics – Page 151
Danish researchers redefine quantum mechanics with major discovery
A persistent challenge in quantum research has been overcome by scientists at the University of Copenhagen in collaboration with Ruhr University Bochum. They have successfully achieved control over two quantum light sources simultaneously—a feat previously limited to just one.
This breakthrough might appear modest to those outside the realm of quantum mechanics, but it marks a pivotal moment in the field. By enabling the creation of quantum mechanical entanglement, this advancement opens the door to transformative commercial technologies.
Northwestern Engineers Achieve Quantum Teleportation Over Existing Internet Cable
Northwestern University engineers have achieved quantum teleportation over fiber optic cables already carrying Internet traffic, an advance that could simplify the infrastructure needed for quantum computing and advanced sensing technologies, the university is reporting.
The study, published in Optica, demonstrates that quantum communication can coexist with classical Internet signals in the same cable.
“This is incredibly exciting because nobody thought it was possible,” said Prem Kumar, an electrical engineering professor at Northwestern and the study’s lead researcher. “Our work shows a path towards next-generation quantum and classical networks sharing a unified fiber optic infrastructure. Basically, it opens the door to pushing quantum communications to the next level.”
Scientists Achieve Quantum Teleportation Over Active Internet Cables
Northwestern University engineers have successfully demonstrated quantum teleportation over fiber optic cables actively carrying Internet traffic, marking a significant step toward practical quantum communication networks that could use existing infrastructure.
Published in Optica | Estimated reading time: 4 minutes
“This is incredibly exciting because nobody thought it was possible,” said Northwestern’s Prem Kumar, who led the study. “Our work shows a path towards next-generation quantum and classical networks sharing a unified fiber optic infrastructure. Basically, it opens the door to pushing quantum communications to the next level.”
The Discovery of a New Semiconductor Could Revolutionize Computing
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The Paper:
Indium Selenide breakthrough ➜ https://www.nature.com/articles/s41586-024-08156-8
Timestamps.
00:00 — New Semiconductor.
04:26 — How it works.
07:23 — Outlook and Alternatives.
11:30 — Top 5 Technologies of 2024
The videos I mentioned:
1. Probabilistic Computing https://youtu.be/hJUHrrihzOQ
2. First Functional Graphene Chip https://youtu.be/wGzBuspS9JI?si=saNoFiCw63B5BhPr.
3. Photonic Chip: https://youtu.be/TJ8vywX9asU
4. Quantum Computing: https://youtu.be/eINcrZGDQD0
5. AI: https://youtu.be/WeYM3dn_XvM
Thumbnail image credit: Akanksha Jain.
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The Physicist Who Says Time Doesn’t Exist
In today’s episode of Theories of Everything, Curt Jaimungal and Julian Barbour challenge conventional physics by exploring Barbour’s revolutionary ideas on time as an emergent property of change, the universe’s increasing order contrary to entropy, and the foundational nature of shape dynamics.
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LINKED MENTIONED:
The Janus Point (Julian Barbour’s book): https://www.amazon.com/Janus-Point-Ne?tag=lifeboatfound-20…
‘Relational Concepts of Space and Time’ (Julian Barbour’s 1982 paper): https://www.jstor.org/stable/687224
‘The Theory of Gravitation’ (Paul Dirac’s 1958 paper): https://www.jstor.org/stable/100497
Carlo Rovelli on TOE: • The Loop Quantum Gravity Debacle: Car…
‘On the Nature of Things’ (book): https://www.hup.harvard.edu/books/978…
Leibniz: Philosophical Writings (book): https://www.amazon.com/Leibniz-Philos?tag=lifeboatfound-20…
Elementary Principles of Statistical Mechanics (book): https://www.amazon.com/Elementary-Pri?tag=lifeboatfound-20…
The interpretations of quantum mechanics in 5 minutes (article): https://curtjaimungal.substack.com/p/.…
Sean Carroll on TOE: • The Crisis in (Fundamental) Physics i…
Timestamps:
00:00 — Introduction.
02:12 — Working Outside of Academia.
03:53 — Space, Time, Dimension.
10:40 — Mach’s Principle.
21:33 — Mach Confused Einstein.
24:22 — Two Particle Universe.
31:46 — Carlo Rovelli.
35:02 — Julian’s Ontology.
43:37 — Julian’s Theory ‘Shape Statistics’
51:11 — Leinbiz’s Philosophical Writings.
56:14 — Expansion of the Universe (Scale Invariance)
01:05:02 — Cosmological Principle.
01:15:34 — Thermodynamics.
01:17:15 — Entropy and Complexity.
01:30:40 — Wave Function / Double Slit Experiment.
01:39:21 — God.
01:44:48 — The Role of Instruments.
01:47:44 — Etymology of Pattern and Matter.
01:51:25 — Join My Substack!
Other Links:
Was our universe generated inside the quantum chaos of a black hole in another universe?
Could Our Universe Have Been Born from a Black Hole?
Black holes are among the most mysterious and fascinating objects in the universe, known for their powerful gravitational pull that nothing can escape. Interestingly, if you were to compress all the matter in the universe into a single point, you would create a black hole roughly the size of the universe itself. While we do not live inside a black hole, the similarities between black holes and our universe raise intriguing questions about their connection.
Event horizons: no escape in both cases.