Quantum states can only be prepared and observed under highly controlled conditions. A research team has now succeeded in creating so-called hot Schrodinger cat states in a superconducting microwave resonator. The study shows that quantum phenomena can also be observed and used in less perfect, warmer conditions.
Quantum states can only be prepared and observed under highly controlled conditions. A research team has now succeeded in creating so-called hot Schrodinger cat states in a superconducting microwave resonator.
The study shows that quantum phenomena can also be observed and used in less perfect, warmer conditions. Quantum states can only be prepared and observed under highly controlled conditions. A research team from Innsbruck, Austria, has now succeeded in creating so-called hot Schrödinger cat states in a superconducting microwave resonator. The study, recently published in, shows that quantum phenomena can also be observed and used in less perfect, warmer conditions. Schrödinger cat states are a fascinating phenomenon in quantum physics in which a quantum object exists simultaneously in two different states. In Erwin Schrödinger's thought experiment, it is a cat that is alive and dead at the same time. In real experiments, such simultaneity has been seen in the locations of atoms and molecules and in the oscillations of electromagnetic resonators. Previously, these analogues to Schrödinger's thought experiment were created by first cooling the quantum object to its ground state, the state with the lowest possible energy. Now, researchers led by Gerhard Kirchmair and Oriol Romero-Isart have demonstrated for the first time that it is indeed possible to create quantum superpositions from thermally excited states."Schrödinger also assumed a living, i.e. 'hot' cat in his thought experiment," remarks Gerhard Kirchmair from the Department of Experimental Physics at the University of Innsbruck and the Institute of Quantum Optics and Quantum Information of the Austrian Academy of Sciences ."We wanted to know whether these quantum effects can also be generated if we don't start from the 'cold' ground state," says Kirchmair., the researchers used a transmon qubit in a microwave resonator to generate the cat states. They succeeded in creating the quantum superpositions at temperatures of up to 1.8 Kelvin -- which is sixty times hotter than the ambient temperature in the cavity."Our results show that it is possible to generate highly mixed quantum states with distinct quantum properties," explains Ian Yang, who performed the experiments reported in the study. The researchers used two special protocols to create the hot Schrödinger cat states. These protocols were previously used to produce cat states starting from the ground state of the system."It turned out that adapted protocols also work at higher temperatures, generating distinct quantum interferences," says Oriol Romero-Isart, until recently Professor of Theoretical Physics at the University of Innsbruck and research group leader at IQOQI Innsbruck and since 2024 Director of ICFO -- the Institute of Photonic Sciences in Barcelona."This opens up new opportunities for the creation and use of quantum superpositions, for example in nanomechanical oscillators, for which achieving the ground state can be technically challenging." "Many of our colleagues were surprised when we first told them about our results, because we usually think of temperature as something that destroys quantum effects," adds Thomas Agrenius, who helped develop the theoretical understanding of the experiment."Our measurements confirm that quantum interference can persist even at high temperature." These research findings could benefit the development of quantum technologies."Our work reveals that it is possible to observe and use quantum phenomena even in less ideal, warmer environments," emphasizes Gerhard Kirchmair."If we can create the necessary interactions in a system, the temperature ultimately doesn't matter."An international research team has controlled hybrid electron-photon quantum states in helium atoms. Control of these special quantum states was enabled by the pulse formation of very intense, ... Physicists have succeeded in coupling two Andreev qubits coherently over a macroscopic distance for the first time. They achieved this with the help of microwave photons generated in a narrow ... Researchers in quantum technology have succeeded in developing a technique to control quantum states of light in a three-dimensional cavity. In addition to creating previously known states, the ... Experimental physicists have succeeded for the first time in controlling protected quantum states - so-called dark states - in superconducting quantum bits. The entangled states are 500 times more ...COMPUTERS & MATH
Quantum Physics Quantum Computing Spintronics Quantum Computers Computers And Internet Spintronics Research Encryption
United States Latest News, United States Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
Are D-Wave’s Claims of ‘Quantum Advantage’ Just ‘Quantum Hype’?D-Wave’s fresh claim that it has achieved “quantum advantage” has sparked criticism of the company—and of the scientific process itself
Read more »
'Hot Ones' Hot Sauce Recalled as 50,000 Bottles Pulled From ShelvesThe hit YouTube show has its own brand of hot sauce, and the FDA has issued a 'Class II' warning.
Read more »
Hot Ones Hot Sauces Served to Guests Selena Gomez, Bad Bunny Are Recalled for Potential ContaminationThe hot sauces recalled by the FDA have been served to Jennifer Lawrence, Gwyneth Paltrow and other stars over several seasons of YouTube's 'Hot Ones'
Read more »
US engineers create quantum ‘super highway’ for instant processor communicationUS researchers have built a breakthrough quantum interconnect allowing direct, high-speed communication between quantum processors.
Read more »
Quantum Computing Is Dead. Long Live Quantum Computing!Schrödinger’s cat is alive and dead at the same time. Ironically enough, so is quantum computing.
Read more »
Quantum armor: Breakthrough method promises to shield information against noiseIn quantum mechanics, skyrmions can appear as stable, wave-like structures that help protect quantum information.
Read more »