Transduction parameter
We consider the dynamics of a string of N trapped ions perturbed by an external electric field, which results in a force δFj(t) = −qδEj(t) on ion j. Restricting ourselves to a single direction without loss of…
Category: 4. Physics
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Traceable random numbers from a non-local quantum advantage
Buchmann, J. A. Introduction to Cryptography (Springer, 2004).
Eastlake, D. E. 3rd, Crocker, S. & Schiller, J. I. Randomness Requirements for Security. Request for Comments 4086 (Internet Engineering Task Force, 2005).
Stone, P. Why lotteries are…
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Probing phonon transport dynamics across an interface by electron microscopy
Cahill, D. G. et al. Nanoscale thermal transport. II. 2003–2012. Appl. Phys. Rev. 1, 011305 (2014).
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Pop, E., Sinha, S. & Goodson, K. E. Heat generation and transport…
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A neutral-atom Hubbard quantum simulator in the cryogenic regime
Lattice potential
In this work, the lattice potential is formed by three retro-reflected laser beams. Two beams are overlapped and mode-matched, propagating in the x-direction, and are referred to as the X and \(\bar{X}\) beams, respectively. The…
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Liquid carbon formed using a high-energy laser
- RESEARCH BRIEFINGS
Using pulses of an ultrabright X-ray free-electron…
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Cheat-proof random numbers generated from quantum entanglement
Random-number generators are used to pick juries, select samples for financial audits and assign participants in clinical trials to treatment or placebo groups. The unpredictability of random numbers ensures that such selections are not biased….
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Quantum physicists unveil most ‘trustworthy’ random-number generator yet
A method based on quantum physics produces strings of numbers that are truly unpredictable.Credit: Flavio Coelho/Getty
The outcome of quantum experiments is intrinsically unpredictable. Now physicists have combined that feature with blockchain…
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Scientists Set New Record for Qubit Operation Accuracy
A team of physicists at the University of Oxford has achieved the lowest-ever error rate for a quantum logic operation — just 0.000015%, or one error in 6.7 million operations.
A rendering of the ion trap chip. Image credit: Jochen Wolf &…
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Searching for a New Force
• Physics 18, s73
A hypothetical fifth force could be detected by its effect on the optical transition frequencies of an element’s different isotopes.
Graphics Design at PTB
Among the…
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Muon Experiment Calls It a Wrap
• Physics 18, 116
The final results from the Muon g − 2 experiment agree with the latest predictions of the muon’s magnetic properties—letting down hopes that the particle would upset the standard model’s applecart.
