@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{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}

}

@article{Amaral2026,

title = {Magnetic levitation as a new probe of non-Newtonian gravity},

author = {Dorian W. P. Amaral and Tim M. Fuchs and Hendrik Ulbricht and Christopher D. Tunnell},

doi = {10.1103/pqrs-bpgj},

issn = {2470-0029},

year  = {2026},

date = {2026-01-27},

journal = {Phys. Rev. D},

volume = {113},

number = {2},

publisher = {American Physical Society (APS)},

abstract = {<jats:p>

                    We present the magnetic oscillatory resonator for rare-interaction studies (MORRIS) and propose the first tabletop search for non-Newtonian gravity due to a Yukawa-like fifth force using a magnetically levitated particle. Our experiment comprises a levitated submillimeter magnet in a superconducting trap that is driven by a time-periodic source. Featuring short-, medium-, and long-term stages, MORRIS will admit increasing sensitivities to the force coupling strength

                    <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline">

                      <a:mi>α</a:mi>

                    </a:math>

                    , optimally probing screening lengths of

                    <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline">

                      <c:mi>λ</c:mi>

                      <c:mo>∼</c:mo>

                      <c:mn>1</c:mn>

                      <c:mtext> </c:mtext>

                      <c:mtext> </c:mtext>

                      <c:mi>mm</c:mi>

                    </c:math>

                    . Our short-term setup provides a proof-of-principle study, with our medium- and long-term stages respectively constraining

                    <e:math xmlns:e="http://www.w3.org/1998/Math/MathML" display="inline">

                      <e:mi>α</e:mi>

                      <e:mo>≲</e:mo>

                      <e:msup>

                        <e:mn>10</e:mn>

                        <e:mrow>

                          <e:mo>−</e:mo>

                          <e:mn>4</e:mn>

                        </e:mrow>

                      </e:msup>

                    </e:math>

                    and

                    <g:math xmlns:g="http://www.w3.org/1998/Math/MathML" display="inline">

                      <g:mi>α</g:mi>

                      <g:mo>≲</g:mo>

                      <g:msup>

                        <g:mn>10</g:mn>

                        <g:mrow>

                          <g:mo>−</g:mo>

                          <g:mn>5</g:mn>

                        </g:mrow>

                      </g:msup>

                    </g:math>

                    , leading over existing bounds. Our projections are readily recastable to concrete models predicting the existence of fifth forces, and our statistical analysis is generally applicable to well-characterized sinusoidal driving forces. By leveraging ultralow dissipation and heavy test masses, MORRIS opens a new window onto tests of small-scale gravity and searches for physics beyond the Standard Model.

                  </jats:p>},

keywords = {},

pubstate = {published},

tppubtype = {article}

}