New opportunities in condensed matter physics for nanoscale quantum sensors

J Rovny, S Gopalakrishnan, ACB Jayich… - arXiv preprint arXiv …, 2024 - arxiv.org
Nitrogen vacancy (NV) centre quantum sensors provide unique opportunities in studying
condensed matter systems: they are quantitative, noninvasive, physically robust, offer …

Local noise spectroscopy of Wigner crystals in two-dimensional materials

PE Dolgirev, I Esterlis, AA Zibrov, MD Lukin… - Physical Review Letters, 2024 - APS
We propose local electromagnetic noise spectroscopy as a versatile and noninvasive tool to
study Wigner crystal phases of strongly interacting two-dimensional electronic systems. In …

Detecting spin-bath polarization with quantum quench phase shifts of single spins in diamond

PC Jerger, YX Wang, M Onizhuk, BS Soloway… - PRX Quantum, 2023 - APS
Single-qubit sensing protocols can be used to measure qubit-bath coupling parameters.
However, for sufficiently large coupling, the sensing protocol itself perturbs the bath, which is …

[HTML][HTML] Unlocking freeform structured surface denoising with small sample learning: Enhancing performance via physics-informed loss and detail-driven data …

W Cui, S Lou, W Zeng, V Kadirkamanathan… - Advanced Engineering …, 2024 - Elsevier
Denoising plays a vital role in freeform structured surface metrology. Traditional techniques,
such as Gaussian and partial differential equation-based diffusion filters, often involve a time …

Quantum noise spectroscopy of critical slowing down in an atomically thin magnet

ME Ziffer, F Machado, B Ursprung, A Lozovoi… - arXiv preprint arXiv …, 2024 - arxiv.org
Low frequency critical fluctuations in magnetic materials encode important information about
the physics of magnetic ordering, especially in the associated critical exponents. While a …

Exceptionally Slow, Long-Range, and Non-Gaussian Critical Fluctuations Dominate the Charge Density Wave Transition

S Kalimuddin, S Chatterjee, A Bera, H Afzal, S Bera… - Physical Review Letters, 2024 - APS
(TaSe 4) 2 I is a well-studied quasi-one-dimensional compound long-known to have a
charge-density wave (CDW) transition around 263 K. We argue that the critical fluctuations …

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 …

Macroscopic Fluctuations Anticipate the Critical Singularity Far Away from the Charge Density Wave Transition

S Kalimuddin, S Chatterjee, A Bera, H Afzal… - arXiv preprint arXiv …, 2023 - arxiv.org
$(TaSe_4) _2I $ is a quasi-one-dimensional compound long-known to have a charge-
density wave (CDW) transition at around 263 K. We experimentally establish that this …

Mitigating fabrication errors by recovering defective syndrome qubits in surface code

S Heng, D Kim, Y Han - Physical Review A, 2024 - APS
Fabrication errors on qubits can render data and syndrome qubits faulty, impacting quantum-
processor reliability. Our proposed method focuses on the recovery of faulty syndrome …

Signatures of magnon hydrodynamics in an atomically-thin ferromagnet

R Xue, N Maksimovic, PE Dolgirev, LQ Xia… - arXiv preprint arXiv …, 2024 - arxiv.org
Strong interactions between particles can lead to emergent collective excitations. These
phenomena have been extensively established in electronic systems, but are also expected …