REVIEW 4 cited by
Discrete Time Crystals in the spin-s Central Spin Model
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
read the original abstract
We propose periodic driving protocols to realize discrete time crystals (DTCs) in a spin-s central spin model. Interestingly, we identify parameter regimes, where eternal period-doubling and higher-order(HO)-DTCs can be realized, even for finite-sized systems. We have determined the dependence of the DTC order on the number of satellite spins and the central spin value, s. Intriguingly, we find that certain classes of HO-DTCs produce a series of maximally entangled Bell cat and super-cat states during their dynamical evolution. Finally, we demonstrate that the HO-DTCs can be employed for quantum-enhanced multiparameter sensing at the Heisenberg limit.
Forward citations
Cited by 4 Pith papers
-
Higher-order discrete time crystals and enhanced sensing in a quantum kicked top
A p=2 kicked-top Floquet system is claimed to host a robust 4-DTC phase at p=π/2, violating the previously proposed q≤p bound for higher-order time crystals.
-
Power-law-graded Ising Interactions Stabilize Time Crystals Realizing Quantum Energy Storage and Sensing
Power-law-graded Ising interactions stabilize discrete time crystals in Floquet-driven spin-1/2 chains, yielding superlinear energy storage as a quantum battery and superextensive quantum Fisher information for timing...
-
Coexistence of inequivalent time-crystalline orders in a Floquet collective spin system
In a Lipkin–Meshkov–Glick spin model driven with different field strengths in two halves, distinct discrete time-crystal orders (2T and 6T) can coexist in the two spatial regions.
-
Discrete time crystal order in spin chains enabled by Floquet flat bands
A flat-band drive that freezes spin dynamics for half each period, followed by a global spin flip, is claimed to produce period-doubling time-crystal order in clean spin chains—but the stated parameters yield only a π...
Discussion (0). Continue with ORCID to comment.