In a paper published in Nature’s NPJ Quantum Information (“Multiphoton quantum-state engineering using conditional measurements”), Omar Magaña-Loaiza, assistant professor in the Louisiana State University (LSU) Department of Physics & Astronomy, and his team of researchers describe a noteworthy step forward in the quantum manipulation and control of light, which has far-reaching quantum technology applications in imaging, simulation, metrology, computation, communication, and cryptography, among other areas.
At the quantum level, light remains difficult to control for engineering purposes.
“If we’re able to control photon fluctuations and associated noise,” Magaña-Loaiza said. “Then, we can make more precise measurements. This technology is new and will change our field.”
Physicists all over the world are racing to develop techniques to preserve light’s quantum properties at large enough scales for practical purposes. While physicists can so far control the quantum properties of single photons and pairs of photons, leading to powerful applications through entanglement and “heralding” (wherein knowledge of one photon gives relatively certain knowledge about another, not-yet-detected photon), Magaña-Loaiza’s team successfully demonstrated a method to generate groups of photons with these same powerful properties–known as multiphoton states.
By subtracting out some photons, Magaña-Loaiza said, “We can reshape the form of the wavepacket and artificially increase the number of photons in it.”
Image Credit: Elsa Hahne/ORED
News This Week
Coronavirus hits the old and those with other health problems hardest, but fit, youthful people are dying too, and experts are trying to understand why: It remains one of the biggest puzzles of the [...]
he past few weeks have revealed the worst and the best in human responses to the coronavirus crisis – from the supermarket hoarders clearing the shelves to the neighbourhood groups organising help for elderly [...]
An Oxford-based firm that uses artificial intelligence to develop new medicines has teamed up with a UK national science facility to screen more than 15,000 drugs for their effectiveness as a treatment for Covid-19. [...]
New research has shed light on a crucial biological mechanism that may have helped the coronavirus to infect humans and spread rapidly around the world. A detailed analysis of the virus’s structure shows that [...]
How does the COVID-19 pandemic compare to other infamous viral infections that have plagued us in modern times? It’s a question that’s been asked repeatedly in social media circles in recent weeks as people [...]
There is no vaccine or specific treatment for COVID-19, the disease caused by the severe acute respiratory syndrome coronavirus 2, or SARS-CoV-2. Since the outbreak began in late 2019, researchers have been racing to [...]
Corona Virus (COVID 19) Interview with Michael Osterholm an expert in infectious disease epidemiology.
Michael Osterholm is an internationally recognized expert in infectious disease epidemiology. He is Regents Professor, McKnight Presidential Endowed Chair in Public Health, the director of the Center for Infectious Disease Research and Policy [...]
With the new coronavirus spreading from person to person (possibly including from people without symptoms), reaching four continents, and traveling faster than SARS, driving it out of existence is looking increasingly unlikely. It’s still [...]
Wake Forest Institute for Regenerative Medicine (WFIRM) scientists have improved upon the 3D bioprinting technique they developed to engineer skeletal muscle as a potential therapy for replacing diseased or damaged muscle tissue, moving another [...]
An international team of scientists from the University of Southampton, the University of Padova, and the University of Zurich has connected a silicon neuron to a neuron from the rat hippocampus with an artificial [...]
In an insightful 42-minute interview, NMIN’s Scientific Director Dr. Pieter Cullis, a pioneer in liposomal gene and drug delivery, discusses his scientific career with a focus on his contributions to the evolution of [...]
A powerful antibiotic that kills some of the most dangerous drug-resistant bacteria in the world has been discovered using artificial intelligence. The drug works in a different way to existing antibacterials and is the [...]
Artificial intelligence hit a big milestone in January — the first drug designed entirely using artificial intelligence entered human clinical trials. The compound, created by Oxford-based biotech company Exscientia, is aimed at treating obsessive-compulsive [...]
Researchers at the Massachusetts General Hospital (MGH) in the US have uncovered the ‘Achilles’ heel’ of most viruses which plague mankind, and could soon develop a universal vaccine. Vaccine research, development and testing takes [...]
Every age in the history of human civilisation has a signature material, from the Stone Age, to the Bronze and Iron Ages. We might even call today’s information-driven society the Silicon Age. Since the [...]