Can quantum optics be used for practical applications? A lot depends on whether a large number of photons can be gathered in quantum state.
Optics & Photonics
Feb 8, 2023
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93
In the world around us, processes appear to follow a certain time-direction: Dandelions eventually turn into blowballs. However, the quantum realm does not play by the same rules. Physicists from the University of Vienna ...
Optics & Photonics
Feb 7, 2023
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941
Researchers have theorized a new mechanism to generate high-energy "quantum light," which could be used to investigate new properties of matter at the atomic scale.
Optics & Photonics
Feb 2, 2023
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1574
Trapped ions have previously only been entangled in one and the same laboratory. Now, teams led by Tracy Northup and Ben Lanyon from the University of Innsbruck have entangled two ions over a distance of 230 meters.
Quantum Physics
Feb 2, 2023
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561
Physicists are increasingly using ultracold molecules to study quantum states of matter. Many researchers contend that molecules have advantages over other alternatives, such as trapped ions, atoms or photons. These advantages ...
Quantum Physics
Feb 1, 2023
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224
An international team of scientists from the University of Luxembourg, Berlin Institute for the Foundations of Learning and Data (BIFOLD) at TU Berlin and Google has now successfully developed a machine learning algorithm ...
Quantum Physics
Jan 30, 2023
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401
Physical systems evolve at a particular speed, which depends on various factors including the system's so-called topological structure (i.e., spatial properties that are preserved over time despite any physical changes that ...
The second law of thermodynamics is often considered to be one of only a few physical laws that is absolutely and unquestionably true. The law states that the amount of 'entropy'—a physical property—of any closed system ...
Quantum Physics
Jan 24, 2023
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1009
"Suppose you knew everything there was to know about a water molecule—the chemical formula, the bond angle, etc.," says Joseph Thywissen, a professor in the Department of Physics and a member of the Centre for Quantum Information ...
Quantum Physics
Jan 11, 2023
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274
The way electrons interact with photons of light is a vital part of many modern technologies, from lasers to solar panels to LEDs. But the interaction is inherently weak because of a major mismatch in scale: the wavelength ...
Optics & Photonics
Jan 4, 2023
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208
