@article{Bassi2026,

title = {Quantum foundations for quantum technologies in the International Year of Quantum (2025)},

author = {A Bassi},

doi = {10.1088/2058-9565/ae49bc},

issn = {2058-9565},

year  = {2026},

date = {2026-06-01},

journal = {Quantum Sci. Technol.},

volume = {11},

number = {2},

publisher = {IOP Publishing},

abstract = {Abstract

                  From the very beginning, quantum mechanics has been accompanied by crucial foundational questions: the possibility of visualizing physical processes, the limits of measurement epitomized by Heisenberg’s uncertainty principle, the existence of a deeper underlying reality with additional degrees of freedom, the role of measurements, and the status of locality. Long regarded as philosophical speculations, these issues were progressively reformulated into precise mathematical statements and ultimately subjected to experimental verification. The trajectory proved unpredictable: questions once dismissed as metaphysical gave rise to experimental platforms, which in turn matured into devices and technologies powering quantum computation, communication, and sensing. Yet this development is not unidirectional: advances in technology also feed back into foundations, enabling tests of principles that were previously out of reach—for example, whether quantum superposition persists at larger and larger scales and whether reality, gravity included, is fundamentally quantum. In this way, the dialogue between foundational inquiry and technological progress continues to shape both our theoretical understanding and the practical realization of quantum phenomena.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Paczos2026,

title = {Gravitational Wave Imprints on Spontaneous Emission},

author = {Jerzy Paczos and Navdeep Arya and Sofia Qvarfort and Daniel Braun and Magdalena Zych},

doi = {10.1103/1gtr-5c2f},

issn = {1079-7114},

year  = {2026},

date = {2026-05-07},

journal = {Phys. Rev. Lett.},

volume = {136},

number = {11},

publisher = {American Physical Society (APS)},

abstract = {<jats:p>Despite growing interest, there is a scarcity of known predictions in the regime where both quantum and general relativistic effects become observable. Here, we investigate a combined atom-field system in a curved spacetime, with a specific focus on gravitational-wave backgrounds. We demonstrate that a plane gravitational wave alters spontaneous emission from a single atom, manifesting itself as a direction-dependent change in the emission spectrum. Although the total decay rate remains unchanged, implying that no information about the gravitational wave is stored in the atomic internal state alone, the wave leaves imprints on the evolution of the composite atom-field system. To quantify how well this effect can be measured, we analyze both the classical Fisher information associated with photon number measurements and the quantum Fisher information. Our analysis indicates that the effect could be measured in state-of-the-art cold-atom experiments and points to spontaneous emission as a potential probe of low-frequency gravitational waves.</jats:p>},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Wilson2025,

title = {Oligonucleotide Selective Detection by Levitated Optomechanics},

author = {Timothy Wilson and Owen J. L. Rackham and Hendrik Ulbricht},

doi = {10.1021/acsnanoscienceau.5c00128},

issn = {2694-2496},

year  = {2026},

date = {2026-02-18},

journal = {ACS Nanosci. Au},

volume = {6},

number = {1},

pages = {28--34},

publisher = {American Chemical Society (ACS)},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Gundhi2026,

title = {From equivalent Lagrangians to inequivalent open quantum system dynamics},

author = {Anirudh Gundhi and Oliviero Angeli and Angelo Bassi},

doi = {10.1103/4rpx-zj2x},

issn = {2643-1564},

year  = {2026},

date = {2026-02-06},

journal = {Phys. Rev. Research},

volume = {8},

number = {1},

publisher = {American Physical Society (APS)},

abstract = {<jats:p>Lagrangians can differ by a total derivative without altering the equations of motion, thus encoding the same physics. This is true both classically and quantum mechanically. We show, however, that in the context of open quantum systems, two Lagrangians that differ by a total derivative can lead to inequivalent reduced dynamics. While these Lagrangians are connected via unitary transformations at the level of the global system-plus-environment description, the equivalence breaks down after tracing out the environment. We argue that only those Lagrangians for which the canonical and mechanical momenta of the system coincide lead to operationally meaningful dynamics. Applying this insight to quantum electrodynamics (QED), we derive the master equation for bremsstrahlung due to an accelerated nonrelativistic electron upto second order in the interaction. The resulting reduced dynamics predicts decoherence in the position basis and closely matches the Caldeira-Leggett form, thus resolving previous discrepancies in the literature. Our findings have implications for both QED and gravitational decoherence, where similar ambiguities arise.</jats:p>},

keywords = {},

pubstate = {published},

tppubtype = {article}

}