Scientists Demonstrate Potential of Rare-Earth Molecular Crystal
The date of：
2022-03-11
viewed:
13
Scientists Demonstrate Potential of Rare-Earth Molecular Crystal as a Photonic Quantum System
The ability to interact with light provides important functionalities for quantum systems, such as communicating over large distances, a key ability for future quantum computers. However, it is very difficult to find a material that can fully exploit the quantum properties of light.A research team from the CNRS and l'Université de Strasbourg, with support from Chimie ParisTech-PSL1 and in collaboration with German teams from KIT2, has demonstrated the potential of a new material based on rare earths as a photonic quantum system. The results, which were published on 9 March 2022 in Nature, show the interest of europium molecular crystals for quantum memories and computers.While quantum technologies promise a revolution in the future, they still remain complex to put in place. For example, quantum systems that can interact with light to create processing functionalities for information and communication through fibre optics in particular, remain rare. Such a platform3 must ideally include an interface with light as well as information storage units, which is to say a memory. Information processing must also be possible within these units, which take the form of spin4. Developing materials that enable a link between spins and light on the quantum level has proven especially difficult.Irreversible Thermodynamic Equilibrium in 1D Crystal LatticesAcceleration of the Expansion of the Universe Might Not Be as Fast as BelievedDiscrete Time Crystals: How Can We Understand These New Phases of Matter?A team of scientists from the CNRS and l'Université de Strasbourg, with support from Chimie ParisTech-PSL and in collaboration with German teams from KIT, has successfully demonstrated the value of europium molecular crystals5 for quantum communications and processors, thanks to their ultra-narrow optical transitions enabling optimal interactions with light.These crystals are the combined product of two systems already used in quantum technology: rare earth ions (such as europium), and molecular systems. Rare-earth crystals are known for their excellent optical and spin properties, but their integration in photonic devices is complex. Molecular systems generally lack spins (a storage or computing unit), or on the contrary present optical lines that are too broad to establish a reliable link between spins and light.Europium molecular crystals represent a major advance, as they have ultra-narrow linewidths. This translates into long-lived quantum states, which were used to demonstrate the storage of a light pulse inside these molecular crystals. Moreover, a first building block for a quantum computer controlled by light has been obtained. This new material for quantum technologies offers previously unseen properties, and paves the way for new architectures for computers and quantum memories in which light will play a central role.The results also open broad prospects for research thanks to the many molecular compounds that can be synthesized.
Hot News
/
Related to recommend
2024
-
07
-
26
Click on the number of times:
0
Surface oxygen functionality controls selective transport of metal ions through graphene oxide membranessource: Pacific Northwest National LaboratoryDeveloping efficient, selective, and scalable separ...
2024
-
07
-
25
Click on the number of times:
0
source:Helmholtz Association of German Research CentresThe special properties of rare earth magnetic materials are due to the electrons in the 4f shell. Until now, the magnetic properties of 4f electr...
2024
-
07
-
25
Click on the number of times:
0
source:SMALL CAPSGold Mountain (ASX: GMN) has defined a series of high-priority drill targets at its Down Under project in Brazil’s Bahia state after confirming key pathfinders for high-grade rare ear...
2024
-
07
-
25
Click on the number of times:
0
Synthesis of a new compound with excellent intrinsic magnetic properties using smaller amounts of rare earth elementssource: National Institute for Materials ScienceThe National Institute for Material...