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False vacuum decay-the transition from a metastable quantum state to a true vacuum state-plays an important role in quantum field theory and non-equilibrium phenomena such as phase transitions and dynamical metastability. The non-perturbative nature of false vacuum decay and the limited experimental access to this process make it challenging to study, leaving several open questions regarding how true vacuum bubbles form, move and interact. Here we observe quantized bubble formation in real time, a key feature of false vacuum decay dynamics, using a quantum annealer with 5,564 superconducting flux qubits. We develop an effective model that captures both initial bubble creation and subsequent interactions, and remains accurate under dissipation. The annealer reveals coherent scaling laws in the driven many-body dynamics for more than 1,000 intrinsic qubit time units. This work provides a method for investigating false vacuum dynamics of large quantum systems in quantum annealers.
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http://dx.doi.org/10.1038/s41567-024-02765-w | DOI Listing |
Cureus
July 2025
Obstetrics and Gynecology, Vassar Brothers Medical Center, Poughkeepsie, USA.
A double true umbilical cord knot (TUCK) is a rare complication of pregnancy that is often missed on ultrasonography. The stricture caused by TUCK can lead to occlusion of fetal circulation, fetal asphyxia, and subsequent death. Despite these risks, there is a lack of evidence and no specific consensus on both antepartum and intrapartum management of TUCK.
View Article and Find Full Text PDFInt J Med Sci
August 2025
Department of Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
: Residual back pain (RBP) following vertebral augmentation (VA) represents a significant challenge in managing osteoporotic vertebral compression fractures (OVCFs). While conventional predictive models have shown moderate accuracy, their preoperative risk stratification capabilities remain suboptimal. CT-based radiomics has demonstrated success in vertebral fracture assessment, yet its integration with artificial intelligence (AI) for predicting RBP remains unexplored.
View Article and Find Full Text PDFEur Arch Otorhinolaryngol
April 2025
Faculty of Medical & Health Sciences, Tel Aviv University, Tel Aviv, Israel.
Purpose: Otoacoustic emission (OAE) is a widely utilized method for screening newborns for congenital hearing loss. While OAE-based screening has high sensitivity, it is associated with high false-positive rates when conducted shortly after birth. Previous studies found that infants delivered by cesarean section show higher false-positive rates.
View Article and Find Full Text PDFForensic Sci Int
May 2025
Faculty of Science, University of South Bohemia in České Budějovice, Branišovská 31a, České Budějovice 370 05, Czech Republic.
Five simple methods for diatom drowning analysis, including three newly developed ones, were compared for diatom yield and species composition consistency. Saponification of fats using sodium hydroxide solution significantly improved the yield of the extraction step, as well as the use of filtration instead of centrifugation. The combination of nitric acid digestion, vacuum filtration, and polycarbonate filter melting led to the development of the lossless light microscopy diatom forensic method (HNO3-PCF), with no detectable alteration in diatom community composition.
View Article and Find Full Text PDFNat Phys
February 2025
School of Physics and Astronomy, University of Leeds, Leeds, UK.