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Ion implantation of the electron-capture nuclide 55Fe for measurements by means of metallic microcalorimeters
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A novel application of machine learning to detect double- Λ hypernuclear events in nuclear emulsions
No full textStabilizer-accelerated quantum many-body ground-state estimation
No full textWe investigate how the stabilizer formalism, in particular highly entangled stabilizer states, can be used to describe the emergence of many-body shape collectivity from individual constituents in a symmetry-preserving and classically efficient way. The method that we adopt is based on determining an optimal separation of the Hamiltonian into a stabilizer component and a residual part inducing nonstabilizerness. The corresponding stabilizer ground state is efficiently prepared using techniques of graph states and stabilizer tableaux. We demonstrate this technique in context of the Lipkin-Meshkov-Glick model, a fully connected spin system presenting a second-order phase transition from spherical to deformed state. The resulting stabilizer ground state is found to capture to a large extent both bipartite and collective multipartite entanglement features of the exact solution in the region of large deformation. We also explore several methods for injecting nonstabilizerness into the system, including adaptive derivative-assembled pseudo-Trotter variational quantum eigensolver and imaginary-time evolution (ITE) techniques. Stabilizer ground states are found to accelerate ITE convergence due to a larger overlap with the exact ground state. While further investigations are required, the present work suggests that collective features may be associated with high but simple large-scale entanglement which can be captured by stabilizer states, while the interplay with single-particle motion may be responsible for inducing nonstabilizerness. This study motivates applications of the proposed approach to more realistic quantum many-body systems, whose stabilizer ground states can be used in combinations with powerful classical many-body techniques and/or quantum methods
A response to the Vancouver call for action: addressing the needs of early career scientists in radiation protection
No full textEarly career researchers, professionals, and scientists (ECRs) are essential to the future of radiation protection, a field that increasingly relies on interdisciplinary collaboration and innovation. In line with the principles outlined in the Vancouver Call for Action for Radiation Protection Researchers, an ICRP (International Commission on Radiological Protection) initiative, this article explores the current landscape for ECRs through the lens of survey data, initiative outcomes, and the establishment of the Early Career in Radiation Protection Network (ECRad). Drawing on a Europe-wide survey of 47 ECRs, the study identifies key areas of concern: while there is strong intrinsic motivation to remain in the field, perceived feasibility is often hampered by job insecurity, fragmented institutional support, and lack of structured mentorship. Although most respondents participate in existing networks such as ICRP, EURADOS, and IRPA, many reported unmet expectations, particularly in mentorship, sustained peer interaction, and accessible professional development. The formation of the RadoNorm Early Career Researcher Council (ECRC) responded directly to these gaps, demonstrating that self-organized, ECR-led initiatives can significantly enhance a sense of belonging and interdisciplinary engagement. However, structural barriers - such as time, funding, and short-term project support - persist, echoing the Vancouver Call for Action's call for improved education, training, and retention. In conclusion, while considerable progress has been made in addressing the needs of ECRs in radiation protection, gaps that threaten the long-term vitality of the field remain. The findings affirm the urgency of coordinated action among institutions, networks, and funding bodies to invest in and empower the next generation of radiation protection professionals
