![]() If you have a market, and if you can invest money, it should work sooner or later, not necessarily as it was envisaged. I have no doubt that when the need is here, and when no fundamental law of physics tells us that it is not possible, it’s a matter of engineering. “Having lasers good enough for most applications took several decades. “Let’s take the laser as an example,” he said. It’s like the learning curve you can find in many industrial applications. Quantum computing technology will improve steadily, Aspect said. However, he thinks there is no fundamental impossibility to solve these issues it’s only a matter of engineering and good ideas. The other challenge is the possibility of entangling, at will, any site with any other site. The first one is decoherence, mainly related to the shielding and cooling of atoms. According to Aspect, there are currently two main challenges with quantum computing. Quantum computing aims to overcome the limitations of classical computing and bring unprecedented processing power to solve real-world problems that could not be addressed before. ![]() “It has been demonstrated since the ’80s that when you want to have a really fundamentally quantum phenomena, you need to be able to address single quantum objects and not an ensemble of objects that you control only collectively,” Aspect said. The second quantum revolution is driven by this idea. Entanglement is a fundamental feature of quantum objects. Each component of an entangled object is strongly linked to the other parts, even though they are separated by a distance that prevents interaction. Professor Aspect’s research clearly demonstrated entanglement between two distinct photons by violating Bell inequalities. “The main advantage of the neutral atoms scheme of Antoine Browaeys used in Pasqal is the possibility of a 3D structure, which means scaling can be easily achieved.” “I think photons are very good for producing random-number–generator atoms and other processing involving a few qubits,” Aspect said. Physics laureate Alain Aspect showing his Nobel Prize medal after the award ceremony on Dec. His research also led to Grangier developing optical tweezers for single atoms. This method is paramount for the achievement of neutral-atom quantum computing. “The Nobel Prize was awarded for showing the extraordinary properties of entanglement, but I worked on many other amazing quantum phenomena, including cooling atoms below the one-photon recoil,” Aspect said in an interview with EE Times Europe.Īspect’s research on cold atoms was an example of innovative methods to cool down atoms, immobilizing and manipulating them with lasers. His research on entangled photons served as a foundation for the most recent advances in quantum physics and the creation of quantum computing. ![]() One of his most significant contributions was his work on quantum entanglement, by which two particles can become linked together in such a way that one cannot speak of the states of each particle, only a global state for the pair. Throughout his career, Aspect has conducted numerous experiments that have shed light on the mysteries of the quantum world. After developing laser cooling of atoms with Claude Cohen-Tannoudji (1985–1992), French physicist who shared the Nobel Prize in Physics in 1997, he shifted to atom optics, where his group revisited quantum optics landmarks with atoms instead of photons and created disordered material quantum simulators. student, French physicist Philippe Grangier, then demonstrated wave-particle duality for a single photon. His 1982 Bell’s inequalities experiment with entangled photons helped settle the 1935 Einstein-Bohr controversy. Aspect’s investigations illuminate quantum physics’ strangest features. Alain Aspect is a French physicist who was awarded the Nobel Prize in Physics in 2022 for his groundbreaking work in the field of quantum mechanics, in particular for his pioneering research into the properties of entangled particles.
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