New device brings scientists closer to penetrating quantum materials

New device brings scientists closer to penetrating quantum materials

Wei Bao, Nebraska associate professor of electrical and computer engineering. Credit: University of Nebraska-Lincoln

Researchers from the University of Nebraska-Lincoln and the University of California, Berkeley, have developed a new optical device that could bring scientists closer to the “holy grail” of finding the universal minimum of mathematical formulas at room temperature. Finding this tricky mathematical value would be a major advance in opening up new options for simulations involving quantum materials.

Many scientific questions rely heavily on being able to find that mathematical value, said Wei Bao, an assistant professor of electrical and computer engineering in Nebraska. The search can be challenging even for modern computers, especially when parameter dimensions – commonly used in quantum physics – are extremely large.

So far, researchers can only do this using Polariton optimization devices at extremely low temperatures, close to about minus 270 degrees Celsius. Bao said the Nebraska-UC Berkeley team “found a way to combine the advantages of light and matter in Room temperature Fit for this great challenge of improvement.”

The devices use quantum optical half-particle and half-material quasiparticles known as exciton-polaritons, which have recently emerged as a solid-state analog photonic simulation platform for Quantum physics Such as Bose-Einstein condensation and complex XY spin models.

“This breakthrough was enabled by adopting a solution of halide perovskite, a popular material for solar cell communities, and growing it under nanotechnology,” Bao said. “This will result in large, exceptionally smooth single-crystal crystals with remarkable optical homogeneity, not previously reported at room temperature for a polariton system.”

Bao is the corresponding author of a research paper published in nature materials.

“This is exciting,” said Bao’s collaborator and current president, Chiang Zhang, who completed this research as a faculty member in mechanical engineering at UC Berkeley. “We have shown that an XY network rotates with a large number of coherently coupled capacitors that can be constructed as a network with a size of up to 10 x 10.”

that it Material properties Future studies may also be performed at room temperature rather than at very cold temperatures. Bao said, “We are just beginning to explore the potential of the room-temperature system to solve complex problems. And our work is a concrete step toward the much-anticipated room-temperature solid-state quantum simulation platform.”

“The solution synthesis method we reported with excellent thickness control for very large monolithic halide perovskite could enable many interesting studies at room temperature, without the need for complex and expensive equipment and materials,” Bao added. It also opens the door for simulation of large computational methods and many other hardware applications, previously inaccessible at room temperature.

This process is essential in an era of intense competition for quantum technologies, which is expected to transform the fields of information processing, sensing, communications, imaging, and more.

Nebraska has prioritized quantum science and engineering as one of its major challenges. It has been named a research priority because of the university’s expertise in this field and the impact research can have in the exciting and promising field.


Optimizing quantum sensors by measuring the direction of coherent spins within a diamond network


more information:
Renjie Tao et al, Halide perovskites managed a Polaritonic XY Spin Hamiltonian at room temperature, nature materials (2022). DOI: 10.1038 / s41563-022-01276-4

the quote: New Device Scientists Get Closer to Hacking Quantum Material (2022, June 17) Retrieved June 17, 2022 from https://phys.org/news/2022-06-device-scientists-closer-quantum-materials.html

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