Superconductivity, superfluidity and quantum geometry in twisted multilayer systems

P Törmä, S Peotta, BA Bernevig - Nature Reviews Physics, 2022 - nature.com
Superconductivity has been observed in moiré systems such as twisted bilayer graphene,
which host flat, dispersionless electronic bands. In parallel, theory work has discovered that …

Nanoscale diamond quantum sensors for many-body physics

J Rovny, S Gopalakrishnan, ACB Jayich… - Nature Reviews …, 2024 - nature.com
Nitrogen vacancy (NV) centre quantum sensors provide unique opportunities in studying
condensed matter systems, as they are quantitative, non-invasive, physically robust, offer …

Inter-valley coherent order and isospin fluctuation mediated superconductivity in rhombohedral trilayer graphene

S Chatterjee, T Wang, E Berg, MP Zaletel - Nature communications, 2022 - nature.com
Superconductivity was recently discovered in rhombohedral trilayer graphene (RTG) in the
absence of a moiré potential. Superconductivity is observed proximate to a metallic state …

Nanoscale covariance magnetometry with diamond quantum sensors

J Rovny, Z Yuan, M Fitzpatrick, AI Abdalla, L Futamura… - Science, 2022 - science.org
Nitrogen vacancy (NV) centers in diamond are atom-scale defects that can be used to sense
magnetic fields with high sensitivity and spatial resolution. Typically, the magnetic field is …

Correlated metals and unconventional superconductivity in rhombohedral trilayer graphene: A renormalization group analysis

DC Lu, T Wang, S Chatterjee, YZ You - Physical Review B, 2022 - APS
Motivated by recent experimental observations of correlated metallic phases and
superconductivity in rhombohedral trilayer graphene (RTG), we perform an unbiased study …

Stabilizing fluctuating spin-triplet superconductivity in graphene via induced spin-orbit coupling

JB Curtis, NR Poniatowski, Y **e, A Yacoby… - Physical Review Letters, 2023 - APS
A recent experiment showed that a proximity-induced Ising spin-orbit coupling enhances the
spin-triplet superconductivity in Bernal bilayer graphene. Here, we show that, due to the …

[HTML][HTML] Nanoscale solid-state nuclear quadrupole resonance spectroscopy using depth-optimized nitrogen-vacancy ensembles in diamond

J Henshaw, P Kehayias, M Saleh Ziabari… - Applied Physics …, 2022 - pubs.aip.org
Nuclear magnetic resonance (NMR) and nuclear quadrupole resonance (NQR)
spectroscopy of bulk quantum materials have provided insight into phenomena, such as …

Quantum noise spectroscopy of dynamical critical phenomena

F Machado, EA Demler, NY Yao, S Chatterjee - Physical Review Letters, 2023 - APS
The transition between distinct phases of matter is characterized by the nature of fluctuations
near the critical point. We demonstrate that noise spectroscopy can not only diagnose the …

Reporter-Spin-Assisted Relaxometry

Z Zhang, M Joos, D Bluvstein, Y Lyu… - Physical Review …, 2023 - APS
A single-spin quantum sensor can quantitatively detect and image fluctuating
electromagnetic fields via their effect on the sensor spin's relaxation time, thus revealing …

Probing the Berezinskii-Kosterlitz-Thouless vortex unbinding transition in two-dimensional superconductors using local noise magnetometry

JB Curtis, N Maksimovic, NR Poniatowski, A Yacoby… - Physical Review B, 2024 - APS
The melting of quasi-long-range superconductivity in two spatial dimensions occurs through
the proliferation and unbinding of vortex-antivortex pairs, a phenomenon known as the …