8 papers
Nonclassical Many-Body Superradiant States with Interparticle and Spin-Momentum Entanglement
Jarrod T. Reilly, Gage W. Harmon, John Drew Wilson +2
We present a cross-cavity system in which steady-state superradiance is achieved using solely collective dissipative dynamics. Two cavities symmetrically couple an ensemble of four…
Efficient Polynomial-Scaled Determination of Algebraic Entanglement Entropy Between Collective Degrees of Freedom
John Drew Wilson, Jarrod T. Reilly, Murray J. Holland
In this work, we explore physical systems which support not only multipartite interparticle entanglement, but also intraparticle entanglement between different degrees of freedom o…
Probing the Critical Point (CritPt) of AI Reasoning: a Frontier Physics Research Benchmark
Minhui Zhu, Minyang Tian, Xiaocheng Yang +61
While large language models (LLMs) with reasoning capabilities are progressing rapidly on high-school math competitions and coding, can they reason effectively through complex, ope…
Geometric Invariants of Quantum Metrology
Christopher Wilson, John Drew Wilson, Luke Coffman +2
We establish a previously unexplored conservation law for the Quantum Fisher Information Matrix (QFIM) expressed as follows; when the QFIM is constructed from a set of observables…
Noise constraints on sensitivity scaling in super-Heisenberg quantum metrology
Noah Lordi, John Drew Wilson, Murray J. Holland +1
Quantum-enhanced metrology surpasses classical metrology by improving estimation precision scaling with a resource (e.g., particle number or energy) from to .…
Engineering tunable decoherence-free subspaces with collective atom-cavity interactions
Lyryl H. C. Vaecairn, Jarrod T. Reilly, John Drew Wilson +2
We propose schemes to design and control a time-dependent decoherence-free subspace (DFS) in a dissipative atom-cavity system. These schemes use atoms with three internal energy le…