1. Photon Pressure with an Effective Negative Mass Microwave Mode 

   Rodrigues I.C.; Steele G.A.; Bothner D. (2024)

   Physical Review Letters

   Harmonic oscillators belong to the most fundamental concepts in physics and are central to many current research fields such as circuit QED, cavity optomechanics, and photon pressure systems. Here, we engineer a microwave mode in a superconducting LC circuit that mimics the dynamics of a negative mass oscillator, and couple it via photon pressure to a second low-frequency circuit. We demonstrate that the effective negative mass dynamics ...

   Journal Article

2. A tailored decomposition approach for optimization under uncertainty of carbon removal technologies in the EU power system 

   Negri V.; Vázquez D.; Grossmann I.E.; et al. (2024)

   Computers and Chemical Engineering

   The broad portfolio of negative emissions technologies calls for integrated analyses to explore the synergies between them and the power sector, with which they display strong links. These analyses should be conducted at a regional level, considering system uncertainties, assessing local benefits and the impact on carbon removal potential. This study investigates how uncertainty in electricity demand affects the optimal design of integrated ...

   Journal Article

3. Biased Ising Model Using Two Coupled Kerr Parametric Oscillators with External Force 

   Álvarez P.; Pittilini D.; Miserocchi F.; et al. (2024)

   Physical Review Letters

   Networks of coupled Kerr parametric oscillators (KPOs) are a leading physical platform for analog solving of complex optimization problems. These systems are colloquially known as "Ising machines."We experimentally and theoretically study such a network under the influence of an external force. The force breaks the collective phase-parity symmetry of the system and competes with the intrinsic coupling in ordering the network configuration, ...

   Journal Article

4. Superconductivity in atomically thin films: Two-dimensional critical state model 

   Gaggioli F.; Blatter G.; Novoselov K.S.; et al. (2024)

   Physical Review Research

   The comprehensive understanding of superconductivity is a multiscale task that involves several levels, starting from the electronic scale determining the microscopic mechanism, going to the phenomenological scale describing vortices and the continuum-elastic scale describing vortex matter, to the macroscopic scale relevant in technological applications. The prime example for such a macro-phenomenological description is the Bean model ...

   Journal Article

5. Absolute dating of the European Neolithic using the 5259 BC rapid ¹⁴C excursion 

   Maczkowski A.; Pearson C.; Francuz J.; et al. (2024)

   Nature Communications

   Abrupt radiocarbon (14C) excursions, or Miyake events, in sequences of radiocarbon measurements from calendar-dated tree-rings provide opportunities to assign absolute calendar dates to undated wood samples from contexts across history and prehistory. Here, we report a tree-ring and 14C-dating study of the Neolithic site of Dispilio, Northern Greece, a waterlogged archaeological site on Lake Kastoria. Findings secure an absolute, ...

   Journal Article

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