Amidst heightened global power rivalries, the geopolitical aspects of the energy transition are taking centre stage, with even liberal-minded countries growing wary about foreign investment in the energy sector and the dependencies created by global value chains of green technologies. Building on current debates on the 'geopoliticization' of foreign economic policies, this paper sets out a conceptual framework to assess the extent to which the energy transition is becoming geopoliticized in the European Union (EU) and its impact on international energy relations. Theoretically, the paper makes the case for considering geopoliticization as a missing link in the study of politicization and securitization in International Relations, allowing for a more fine-grained diagnosis of current trends and their likely evolution. Empirically, the analysis identifies structural geopoliticizing dynamics in the EU's framing of the energy transition, although to different degrees depending on the concrete issue at hand. While demands for factoring in the geopolitical consequences of the energy transition are ever louder, normatively, the paper raises a note of caution against the adverse consequences geopoliticization may have for the global transition to low-carbon energy systems.
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http://dx.doi.org/10.1080/14650045.2023.2283489 | DOI Listing |
Sci Robot
January 2025
Biorobotics Laboratory, Soft Robotics Research Center, Institute of Advanced Machines and Design, Department of Mechanical Engineering, Institute of Engineering, Seoul National University, Seoul, Republic of Korea.
Snap-through, a rapid transition of a system from an equilibrium state to a nonadjacent equilibrium state, is a valuable design element of soft devices for converting a monolithic stimulus into systematic responses with impulsive motions. A common way to benefit from snap-through is to embody it within structures and materials, such as bistable structures. Torque-reversal mechanisms discovered in nature, which harness snap-through instability via muscular forces, may have comparative advantages.
View Article and Find Full Text PDFPhys Rev Lett
December 2024
Flatiron Institute, Center for Computational Quantum Physics, New York, New York 10010, USA.
The two-dimensional electron gas (2DEG) is a fundamental model, which is drawing increasing interest because of recent advances in experimental and theoretical studies of 2D materials. Current understanding of the ground state of the 2DEG relies on quantum Monte Carlo calculations, based on variational comparisons of different Ansätze for different phases. We use a single variational ansatz, a general backflow-type wave function using a message-passing neural quantum state architecture, for a unified description across the entire density range.
View Article and Find Full Text PDFPhys Rev Lett
December 2024
Xi'an Jiaotong University, School of Microelectronics & State Key Laboratory for Mechanical Behavior of Materials, Xi'an 710049, China.
The bismuth monolayer has recently been experimentally identified as a novel platform for the investigation of two-dimensional single-element ferroelectric system. Here, we model the potential energy surface of a bismuth monolayer by employing a message-passing neural network and achieve an error smaller than 1.2 meV per atom.
View Article and Find Full Text PDFPhys Rev Lett
December 2024
Columbia University, Department of Physics, New York, New York 10027, USA.
We report on the optical polarizability of microwave-shielded ultracold NaCs molecules in an optical dipole trap. While dressing a pair of rotational states with a microwave field, we observe a marked dependence of the optical polarizability on the intensity and detuning of the dressing field. To precisely characterize differential energy shifts between dressed rotational states, we establish dressed-state spectroscopy.
View Article and Find Full Text PDFWe report the first evidence for the h_{b}(2P)→ϒ(1S)η transition with a significance of 3.5 standard deviations. The decay branching fraction is measured to be B[h_{b}(2P)→ϒ(1S)η]=(7.
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