Quantum physics

Reporting from MIT, GBH’s Kirk Carapezza highlights how MIT is launching a “major effort to advance quantum computing, with a state investment of $25 million to help build a new research facility in Cambridge.” Said President Sally Kornbluth: “Everything you can think of that uses classical computing now, think about quantum speeding it up, making it more efficient. We think about the AI revolution and the expenses of AI and data centers. This is going to be impacted by a whole new different way of computing.”

President Sally Kornbluth and Governor Maura Healey announced the establishment of a new quantum hub at MIT, called the Quantum Systems Laboratory, which is aimed at enabling scientists to undertake impactful work applying quantum research across practical domains, including life sciences and national defense, reports Aaron Pressman for The Boston Globe. “Greater Boston has the greatest concentration of quantum talent anywhere in the world,” said Kornbluth. “It has been clear to us for some time that if we could magnify all of that talent with the right facilities and shared quantum toolbox, we could establish Massachusetts as a national hub for quantum innovation.”

To help establish Massachusetts and the nation as a quantum leader, President Sally Kornbluth and Governor Maura Healey announced plans for a new share-used quantum research facility at MIT, writes Axios reporter Steph Solis. The Quantum Systems Laboratory would “host teams focused on using quantum mechanics for life sciences and defense research, but what would set the MIT project apart from existing labs is its ability to power direct communication among multiple quantum computers,” Solis explains. 

Thanks in part to a $25 investment from the Commonwealth of Massachusetts, MIT plans to open the Quantum Systems Laboratory, which will “provide quantum experts from across Massachusetts access to quantum hardware and specialized equipment,” reports Lucia Maffei for the Boston Business Journal. "This is good news for MIT, good news for Massachusetts and, frankly, good news for the world," said Governor Maura Healey. "This is really setting the stage to have cutting-edge quantum computers be able to operate in that building," said President Sally Kornbluth. "There will be many people throughout Massachusetts who come to use this facility. It's really a hub to make Massachusetts a quantum center.” 

State House News Service reporter Katie Castellani writes that President Sally Kornbluth and Governor Maura Healey announced a new shared-use quantum facility at MIT, the Quantum Systems Laboratory (QSL), aimed at providing scientists the opportunity to apply quantum research across various sectors, including defense and the life sciences. The QSL will “bring quantum computers together with quantum sensors and peripherals through physical channels that transfer information,” Castellani explains. 

Prof. William Oliver speaks with Scientific American reporter Adam Becker about the future of quantum computing. “Quantum computing is real, it’s happening, and it’s going to take time,” Oliver says. “It’s going to take engineering, and there’s still science to do as well. It’s not all buttoned up.” He adds that, in the future, we will be using quantum computers "to better understand, from a scientific standpoint, the world around us.”

Prof. Jesse Thaler speaks with New Scientist reporter Jon Cartwright about his work focused on exploring quantum entanglement. Research by Thaler and his colleagues found “that minimized entanglement gave precisely the small level of mixing between quarks observed in particle collider experiments,” explains Cartwright.  

MIT is “taking a quantum leap with the launch of the new MIT Quantum Initiative (QMIT), reports State House News reporter Katie Castellani. “There isn't a more important technological field right now than quantum with its enormous potential for impact on both fundamental research and practical problems,” said President Sally Kornbluth during the launch event. “QMIT will help us to ask the right questions, identify the most critical problems and create a roadmap for developing quantum solutions that are both transformative and accessible.” 

A 1927 argument between Albert Einstein and Niels Bohr regarding “one of the core mysteries of quantum physics,” has led multiple scientists, including Prof. Wolfgang Ketterle, to conduct the thought experiments the two scientists developed a century ago to determine if  “light [is] really a wave, a particle or a complex mixture of the two,” writes Karmela Padavic-Callaghan for New Scientist.

Researchers at MIT have developed the first full map of the quantum landscape that constrains how electrons move inside matter, reports Karmela Padavic-Callaghan for New Scientist. The map “offers a new way to understand and design materials, perhaps leading to, for instance, super-efficient wires that conduct electricity with no resistance,” Padavic-Callaghan explains. “A new view of what actually happens inside materials is bound to lead to new ways to improve them.” 

Researchers at MIT have found a new “iteration of a foundational quantum experiment,” reports Gayoung Lee for Gizmodo. They “successfully replicated the double-slit experiment on the atomic scale, allowing for an unprecedented level of empirical precision,” writes Lee. “By using supercold atoms as ‘slits’ for light to pass through, the team confirmed that the wave-particle duality of light—with all its paradoxical properties—holds up even on the most fundamental quantum scales.” 

Physicists at MIT have provided new insights into the world of quantum mechanics after successfully performing the double-slit experiment with “incredible atomic precision,” reports Mrigakshi Dixit for Interesting Engineering. The researchers “discovered a clear relationship: the more precisely they determined a photon’s path (confirming its particle-like behavior), the more the wave-like interference pattern faded,” explains Dixit. “The researchers observed that the wave interference pattern weakened any time an atom was nudged by a photon passing by. This confirmed that getting information about the photon’s route automatically erased its wave-like properties.”  

Writing for Physics Today, Prof. David Kaiser chronicles his academic and professional career studying physics and the history of science. “Efforts to understand quantum entanglement and to test or constrain various alternatives have enabled generations of physicists to explore the fundamental strangeness of quantum theory,” writes Kaiser. "At the same time, as topics like entanglement and Bell’s inequality have wandered into and out of the mainstream, they enable us to chart the changing boundaries in the field of physics and the shifting place that physicists have occupied in our wider cultures.”   

MIT researchers have observed “Hofstadter’s butterfly” – the quantum theory that proposes “under the right conditions, tiny electrons in a quantum system could produce an energy spectrum composed of fractals” that would resemble a butterfly, reports Gayoung Lee for Scientific American. The discovery, “emerged from the complex quantum dance of electrons sandwiched between two microscopic layers of graphene,” explains Lee. The results “were unexpected [as] the researchers involved weren’t even trying to hatch Hofstadter’s butterfly from its quantum chrysalis.” 

MIT physicists have measured kinetic inductance for two layers of stacked and twisted graphene and found that the superconducting current is much “stiffer,” meaning it resists change more than predicted by any conventional theory of superconductivity, reports Karmela Padavic-Callaghan for New Scientist. The findings could do more than “shed light on why graphene superconducts – they could also reveal key properties required for room-temperature superconductors.”