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Apr 14, 2024

Photonic Quantum Computing: A Promising Future With Mature Technologies And Room-Temperature Operations

Posted by in categories: computing, particle physics, quantum physics

Photonic quantum computation, a type of quantum computation that uses light particles or photons, is divided into two main categories: discrete-variable (DV) and continuous-variable (CV) photonic quantum computation. Both have been realized experimentally and can be combined to overcome individual limitations. Photonic quantum computation is important as it can perform specific computational tasks more efficiently. It has several advantages, including the ability to observe and engineer quantum phenomena at room temperature, maintain coherence, and be engineered using mature technologies. The future of photonic quantum computing looks promising due to the significant progress in photonic technology.

Photonic quantum computation is a type of quantum computation that uses photons, particles of light, as the physical system for performing the computation. Photons are ideal for quantum systems because they operate at room temperature and photonic technologies are relatively mature. The field of photonic quantum computation is divided into two main categories: discrete-variable (DV) and continuous-variable (CV) photonic quantum computation.

In DV photonic quantum computation, quantum information is represented by one or more modal properties, such as polarization, that take on distinct values from a finite set. Quantum information is processed via operations on these modal properties and eventually measured using single photon detectors. On the other hand, in CV photonic quantum computation, quantum information is represented by properties of the electromagnetic field that take on any value in an interval, such as position. The electromagnetic field is transformed via Gaussian and non-Gaussian operations and then detected via homodyne detection.

Apr 14, 2024

Peter Higgs transformed what we know about the building blocks of the universe

Posted by in category: particle physics

Peter Higgs, who gave his name to the subatomic particle known as the Higgs boson, has died aged 94. He was always a modest man, especially when considering that he was one of the greats of particle physics—the area of science concerned with the building blocks of matter.

Apr 14, 2024

Exploring Quantum Teleportation: Qubit Transfer With Exotic Entangled States

Posted by in categories: particle physics, quantum physics

Quantum teleportation is a process by which quantum information can be transmitted from one location to another, with the help of classical communication and previously shared quantum entanglement between the sending and receiving location. This process is not to be confused with teleportation as depicted in science fiction, where matter is instantaneously transported from one location to another. Instead, quantum teleportation involves the transfer of quantum states between particles at different locations without any physical movement of the particles themselves.

In a recent study by Isiaka Aremua and Laure Gouba, the researchers explored the teleportation of a qubit using exotic entangled coherent states. A qubit, or quantum bit, is the basic unit of quantum information. It is a quantum system that can exist in any superposition of its two basis states. The researchers used a system of an electron moving on a plane in uniform external magnetic and electric fields to construct different classes of coherent states.

Coherent states are specific states of a quantum harmonic oscillator. They are often described as the quantum equivalent of classical states because they closely resemble the behavior of classical particles. In the context of quantum teleportation, coherent states are used to form entangled states, which are crucial for the teleportation process.

Apr 14, 2024

The Mirror Universe Could Actually Be Real And It’s Scarier Than We Thought

Posted by in category: futurism

While the idea of a mirror universe sounds like something from Marvel’s Doctor Strange, scientists now believe it could be real.

Apr 14, 2024

Mysterious star that ‘woke up’ is sending strange radio signals across Milky Way leaving scientists baffled

Posted by in category: cosmology

MYSTERIOUS signals are being detected coming from a star that has been radio silent for over a decade, according to scientists.

The radio signals are very powerful and their sudden appearance has baffled experts.

According to Live Science, the strange star is a magnetar that suddenly became very active again in 2018.

Apr 14, 2024

New Solution To The Fermi Paradox Suggests The Great Filter Is Nearly Upon Us

Posted by in categories: alien life, existential risks

How optimistic.

First, a little background. With 200 billion trillion (ish) stars in the universe and 13.7 billion years that have elapsed since it all began, you might be wondering where all the alien civilizations are at. This is the basic question behind the Fermi paradox, the tension between our suspicions of the potential for life in the universe (given planets found in habitable zones, etc) and the fact that we have only found one planet with an intelligent (ish) species inhabiting it.

One solution, or at least a way of thinking about the problem, is known as the Great Filter. Proposed by Robin Hanson of the Future of Humanity Institute at Oxford University, the argument goes that given the lack of observed technologically advanced alien civilizations, there must be a great barrier to the development of life or civilization that prevents them from getting to a stage where they are making big, detectable impacts on their environment that we can witness from Earth.

Continue reading “New Solution To The Fermi Paradox Suggests The Great Filter Is Nearly Upon Us” »

Apr 14, 2024

For the first time, Wigner crystal is seen using a quantum device

Posted by in categories: futurism, quantum physics

Physicists at Princeton University successfully visualize the 90-year-old Wigner Crystal theory. This could pave the way for future quantum discoveries.

Apr 14, 2024

Video: Largest 3D map of the universe reveals hints of new physics

Posted by in categories: physics, space, virtual reality

Astronomers have produced the largest 3D map of the universe, which can be explored in an interactive VR video. In the process, they’ve uncovered some tantalizing hints that our understanding of physics, including the ultimate fate of the cosmos, could be wrong.

The Dark Energy Spectroscopic Instrument (DESI) is a huge international project to map out the universe in three dimensions, which began collecting data in 2021. This early version of the map only includes data collected during the first year – 5.7 million galaxies and quasars out of the planned goal of 40 million. This data allows the scientists to peer as far as 11 billion light-years into deep space and time, providing a glimpse into the very early universe with an unprecedented precision of less than 1%.

Continue reading “Video: Largest 3D map of the universe reveals hints of new physics” »

Apr 14, 2024

Renowned Physicist Edward Witten’s Groundbreaking String Theory Revelation

Posted by in category: quantum physics

String Theory proposes that the fundamental building blocks of the universe are tiny vibrating strings, forcing gravity and quantum mechanics to work together and providing a rich framework for understanding the universe Questions to inspire discussion What is String Theory? —String Theory proposes that the fundament.

Apr 14, 2024

Attempting To Slow The Epigenetic Pace Of Aging (13-Test Analysis)

Posted by in categories: genetics, life extension

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