Explanipedia

Edge State Selective Measurement of Quantum Hall Dispersions Open

Taras Patlatiuk, Amir Yacoby, Ken West · 2025

Edge states reflect the key physical properties yet are difficult to probe individually, particularly when several states are present at an edge. We present momentum resolved tunneling spectroscopy between a quantum well and a quantum wire…

Nonlinear superconducting ring resonator for sensitive measurement of time reversal symmetry broken order Open

Nicolas Dirnegger, Marie E. Wesson, Arpit Arora, Ioannis Petrides, Jonathan B. Curtis , et al. · 2025

Time-reversal symmetry breaking (TRSB) has been central to detecting exotic phases of matter, often linked to complex superconducting order parameters or unique magnetic phenomena. Here, we leverage circuit electrodynamics capabilities of …

Imaging AC magnetization response of soft magnetic thin films using diamond quantum sensors Open

Ryota Kitagawa, Aoi Nakatsuka, Teruo Kôhashi, Takeyuki Tsuji, H. Nitta , et al. · 2025

The energy loss in inductor core is a significant limitation in high-frequency power electronics. For evaluating and optimizing soft magnets, simultaneous imaging of both amplitude and phase of AC stray fields beyond 10 kHz is crucial. Her…

Non-Gaussian Noise Magnetometry Using Local Spin Qubits Open

Jonathan B. Curtis, Amir Yacoby, Eugene Demler · 2025

Atomic scale qubits, as may be realized in nitrogen vacancy (NV) centers in diamond, offer the opportunity to study magnetic field noise with nanometer scale spatial resolution. Using these spin qubits, one can learn a great deal about the…

Erratum: Heat-charge separation in a hybrid superconducting quantum Hall setup [Phys. Rev. B <b>110</b>, L161407 (2024)] Open

Carlo Panu, Fabio Taddei, Marco Polini, Amir Yacoby · 2025

Probing electromagnetic nonreciprocity with quantum geometry of photonic states Open

Ioannis Petrides, Jonathan B. Curtis, Marie E. Wesson, Amir Yacoby, Prineha Narang · 2025

Reciprocal and nonreciprocal effects in dielectric and magnetic materials provide crucial information about the microscopic properties of electrons. However, experimentally distinguishing the two has proven to be challenging, especially wh…

Microwave-regime demonstration of plasmonic non-reciprocity in a flowing two-dimensional electron gas Open

Jing Yee Chee, Han Sae Jung, Shannon P. Harvey, Kenneth West, L. N. Pfeiffer , et al. · 2025

The speed of a plasmonic wave in the presence of electron drift in a conductor depends on the wave's propagation direction, with the wave traveling along the drift (`forward wave') faster than the wave traveling against the drift (`backwar…

Tunable superconducting microwave resonator for quantum transduction Open

Hana K. Warner, Shima Rajabali, Seunghyun Park, Nayely Rolon-Gomez, Donald Witt , et al. · 2025

This work presents a superconducting microwave resonator that is both frequency tunable and compatible with photolithography. This design is well-suited for integration with electro-optic devices. We demonstrate tuning ranges exceeding 500…

On-Chip Terahertz Spectroscopy for Dual-Gated van der Waals Heterostructures at Cryogenic Temperatures Open

Junseok Seo, Zhengguang Lu, Seunghyun Park, Jixiang Yang, Fangzhou Xia , et al. · 2024

Van der Waals heterostructures have emerged as a versatile platform to study correlated and topological electron physics. Spectroscopy experiments in the THz regime are crucial since the energy of THz photons matches that of relevant excit…

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

Jonathan B. Curtis, Nikola Maksimovic, Nicholas R. Poniatowski, Amir Yacoby, Bertrand I. Halperin , et al. · 2024

Heat-charge separation in a hybrid superconducting quantum Hall setup Open

Carlo Panu, Fabio Taddei, Marco Polini, Amir Yacoby · 2024

Separating heat from charge in a material is an extremely challenging task since they are transported by the very same carriers, i.e., electrons or holes. In this Letter we show that such separation can reach 100% efficiency in a hybrid su…

Current induced hidden states in Josephson junctions Open

Shaowen Chen, Seunghyun Park, Uri Vool, Nikola Maksimovic, David A. Broadway , et al. · 2024

An antiferromagnetic diode effect in even-layered MnBi2Te4 Open

Anyuan Gao, Shao-Wen Chen, B. Ghosh, Jian-Xiang Qiu, Yufei Liu , et al. · 2024

Circuit quantum electrodynamics detection of induced two-fold anisotropic pairing in a hybrid superconductor–ferromagnet bilayer Open

C. G. L. Bøttcher, Nicholas R. Poniatowski, Andrey Grankin, Marie E. Wesson, Zeyin Yan , et al. · 2024

Strongly coupled edge states in a graphene quantum Hall interferometer Open

Thomas Werkmeister, James R. Ehrets, Yuval Ronen, Marie E. Wesson, Danial Haei Najafabadi , et al. · 2024

Toward Programmable Quantum Processors Based on Spin Qubits with Mechanically Mediated Interactions and Transport Open

F. Fung, Emma Rosenfeld, J. D. Schaefer, Aaron Kabcenell, Jan Gieseler , et al. · 2024

Solid-state spin qubits are promising candidates for quantum information processing, but controlled interactions and entanglement in large, multiqubit systems are currently difficult to achieve. We describe a method for programmable contro…

On-Chip Multidimensional Control of Twisted Moiré Photonic Crystal for Adaptive Sensing and Imaging Open

Yuan Cao, Haoning Tang, Beicheng Lou, Fan Du, Guangqi Gao , et al. · 2024

Moiré photonic structures permit the engineering of optical band structures and light-matter interactions, offering new opportunities in photonics and optoelectronics, paving the way for new nanophotonic applications, such as ultra-low thr…

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

Jonathan B. Curtis, Nikola Maksimovic, Nicholas R. Poniatowski, Amir Yacoby, Bertrand I. Halperin , et al. · 2024

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 Berezinskii-Kosterlitz-Thouless (BKT) transition. Although s…

Strong interactions and isospin symmetry breaking in a supermoiré lattice Open

Yonglong Xie, Andrew T. Pierce, Jeong Min Park, Daniel E. Parker, Jie Wang , et al. · 2024

In multilayer moiré heterostructures, the interference of multiple twist angles ubiquitously leads to tunable ultra-long-wavelength patterns known as supermoiré lattices. However, their impact on the system's many-body electronic phase dia…

Anyon braiding and telegraph noise in a graphene interferometer Open

Thomas Werkmeister, James R. Ehrets, Marie E. Wesson, Danial Haei Najafabadi, Kenji Watanabe , et al. · 2024

The search for anyons, quasiparticles with fractional charge and exotic exchange statistics, has inspired decades of condensed matter research. Quantum Hall interferometers enable direct observation of the anyon braiding phase via discrete…

Diamond Micro-Chip for Quantum Microscopy Open

Shahidul Asif, Hang Chen, Johannes Cremer, Shantam Ravan, Jeyson Támara-Isaza , et al. · 2024

The nitrogen vacancy (NV) center in diamond is an increasingly popular quantum sensor for microscopy of electrical current, magnetization, and spins. However, efficient NV-sample integration with a robust, high-quality interface remains an…

2024 roadmap on magnetic microscopy techniques and their applications in materials science Open

Dennis Valbjørn Christensen, U. Staub, T. R. Devidas, Beena Kalisky, Katja C. Nowack , et al. · 2024

Considering the growing interest in magnetic materials for unconventional computing, data storage, and sensor applications, there is active research not only on material synthesis but also characterisation of their properties. In addition …

QPress: Quantum Press for Next-Generation Quantum Information Platforms Open

Amir Yacoby, Philip Kim, Tim Kaxiras, W.B. Wilson, J. G. Checkelsky , et al. · 2024

Quantum information science (QIS) holds promise for revolutionizing computation, communication, and sensing. Of course, realizing this promise requires material platforms that can host quantum bits with pre-assigned characteristics that ar…

Magnon hydrodynamics in an atomically-thin ferromagnet Open

Ruolan Xue, Nikola Maksimovic, Pavel E. Dolgirev, Li-Qiao Xia, Ryota Kitagawa , et al. · 2024

Strong interactions between particles can lead to emergent collective excitations. These phenomena have been extensively established in electronic systems, but are also expected to occur for gases of neutral particles like magnons, i.e. sp…

2024 Roadmap on Magnetic Microscopy Techniques and Their Applications in Materials Science Open

Dennis Valbjørn Christensen, U. Staub, T. R. Devidas, Beena Kalisky, Katja C. Nowack , et al. · 2024

Considering the growing interest in magnetic materials for unconventional computing, data storage, and sensor applications, there is active research not only on material synthesis but also characterisation of their properties. In addition …

Heat-charge separation in a hybrid superconducting quantum Hall setup Open

Carlo Panu, Fabio Taddei, Marco Polini, Amir Yacoby · 2024

Separating heat from charge in a material is an extremely challenging task since they are transported by the very same carriers, i.e. electrons or holes. In this Letter we show that such separation can reach 100% efficiency in a hybrid sup…

Probing Electromagnetic Nonreciprocity with Quantum Geometry of Photonic States Open

Ioannis Petrides, Jonathan B. Curtis, Marie E. Wesson, Amir Yacoby, Prineha Narang · 2024

Reciprocal and nonreciprocal effects in dielectric and magnetic materials provide crucial information about the microscopic properties of electrons. However, experimentally distinguishing the two has proven to be challenging, especially wh…

Tunable interplay between light and heavy electrons in twisted trilayer graphene Open

Andrew T. Pierce, Yonglong Xie, Jeong Min Park, Zhuozhen Cai, Kenji Watanabe , et al. · 2024

In strongly interacting systems with multiple energy bands, the interplay between electrons with different effective masses and the enlarged Hilbert space drives intricate correlated phenomena that do not occur in single-band systems. Rece…

On-Chip Multidimensional Dynamic Control of Twisted Moiré Photonic Crystal for Smart Sensing and Imaging Open

Haoning Tang, Beicheng Lou, Fan Du, Guangqi Gao, Mingjie Zhang , et al. · 2023

Reconfigurable optics, optical systems that have a dynamically tunable configuration, are emerging as a new frontier in photonics research. Recently, twisted moiré photonic crystal has become a competitive candidate for implementing reconf…

Strongly coupled edge states in a graphene quantum Hall interferometer Open

Thomas Werkmeister, James R. Ehrets, Yuval Ronen, Marie E. Wesson, Danial Haei Najafabadi , et al. · 2023

Electronic interferometers using the chiral, one-dimensional (1D) edge channels of the quantum Hall effect (QHE) can demonstrate a wealth of fundamental phenomena. The recent observation of phase jumps in a Fabry-Pérot (FP) interferometer …

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