A Fiber-coupled Scanning Magnetometer with Nitrogen-Vacancy Spins in a Diamond Nanobeam

Kavli Affiliate: Toeno Van Der Sar | First 5 Authors: Yufan Li, Fabian A. Gerritsma, Samer Kurdi, Nina Codreanu, Simon Gröblacher | Summary: Magnetic imaging with nitrogen-vacancy (NV) spins in diamond is becoming an established tool for studying nanoscale physics in condensed matter systems. However, the optical access required for NV spin readout remains an […]


Continue.. A Fiber-coupled Scanning Magnetometer with Nitrogen-Vacancy Spins in a Diamond Nanobeam

A Fiber-coupled Scanning Magnetometer with Nitrogen-Vacancy Spins in a Diamond Nanobeam

Kavli Affiliate: Toeno Van Der Sar | First 5 Authors: Yufan Li, Fabian A. Gerritsma, Samer Kurdi, Nina Codreanu, Simon Gröblacher | Summary: Magnetic imaging with nitrogen-vacancy (NV) spins in diamond is becoming an established tool for studying nanoscale physics in condensed matter systems. However, the optical access required for NV spin readout remains an […]


Continue.. A Fiber-coupled Scanning Magnetometer with Nitrogen-Vacancy Spins in a Diamond Nanobeam

Nanomechanical absorption spectroscopy of 2D materials with femtowatt sensitivity

Kavli Affiliate: Herre Van Der Zant | First 5 Authors: Jan N. Kirchhof, Yuefeng Yu, Denis Yagodkin, Nele Stetzuhn, Daniel B. de Araújo | Summary: Nanomechanical spectroscopy (NMS) is a recently developed approach to determine optical absorption spectra of nanoscale materials via mechanical measurements. It is based on measuring changes in the resonance frequency of […]


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Surface acoustic wave resonators on thin film piezoelectric substrates in the quantum regime

Kavli Affiliate: Simon Groblacher | First 5 Authors: Thomas Luschmann, Alexander Jung, Stephan Geprägs, Franz X. Haslbeck, Achim Marx | Summary: Lithium niobate (LNO) is a well established material for surface acoustic wave (SAW) devices including resonators, delay lines and filters. Recently, multi-layer substrates based on LNO thin films have become commercially available. Here, we […]


Continue.. Surface acoustic wave resonators on thin film piezoelectric substrates in the quantum regime

Phase transitions of wave packet dynamics in disordered non-Hermitian systems

Kavli Affiliate: Anton R. Akhmerov | First 5 Authors: Helene Spring, Viktor Könye, Fabian A. Gerritsma, Ion Cosma Fulga, Anton R. Akhmerov | Summary: Disorder can localize the eigenstates of one-dimensional non-Hermitian systems, leading to an Anderson transition with a critical exponent of 1. We show that, due to the lack of energy conservation, the […]


Continue.. Phase transitions of wave packet dynamics in disordered non-Hermitian systems

Orbital design of Berry curvature: pinch points and giant dipoles induced by crystal fields

Kavli Affiliate: Andrea D. Caviglia | First 5 Authors: Maria Teresa Mercaldo, Canio Noce, Andrea D. Caviglia, Mario Cuoco, Carmine Ortix | Summary: The Berry curvature (BC) – a quantity encoding the geometric properties of the electronic wavefunctions in a solid – is at the heart of different Hall-like transport phenomena, including the anomalous Hall […]


Continue.. Orbital design of Berry curvature: pinch points and giant dipoles induced by crystal fields

Dissipative Optomechanics in High-Frequency Nanomechanical Resonators

Kavli Affiliate: Simon Groblacher | First 5 Authors: André G. Primo, Pedro V. Pinho, Rodrigo Benevides, Simon Gröblacher, Gustavo S. Wiederhecker | Summary: The coherent transduction of information between microwave and optical domains is a fundamental building block for future quantum networks. A promising way to bridge these widely different frequencies is using high-frequency nanomechanical […]


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Photon-Pressure with a Negative Mass Microwave Mode

Kavli Affiliate: Gary A. Steele | First 5 Authors: Ines C. Rodrigues, Gary A. Steele, Daniel Bothner, , | Summary: Harmonic oscillators belong to the most fundamental concepts in physics and are central to many current research fields such as circuit QED, cavity optomechanics and photon-pressure systems. Here, we engineer an effective negative mass harmonic […]


Continue.. Photon-Pressure with a Negative Mass Microwave Mode

Photon-Pressure with an Effective Negative Mass Microwave Mode

Kavli Affiliate: Gary A. Steele | First 5 Authors: Ines C. Rodrigues, Gary A. Steele, Daniel Bothner, , | Summary: Harmonic oscillators belong to the most fundamental concepts in physics and are central to many current research fields such as circuit QED, cavity optomechanics and photon-pressure systems. Here, we engineer a microwave mode in a […]


Continue.. Photon-Pressure with an Effective Negative Mass Microwave Mode

Resolving non-perturbative renormalization of a microwave-dressed weakly anharmonic superconducting qubit

Kavli Affiliate: Gary A. Steele | First 5 Authors: Byoung-moo Ann, Sercan Deve, Gary A. Steele, , | Summary: Microwave driving is a ubiquitous technique for superconducting qubits (SCQs), but the dressed states description based on the conventionally used perturbation theory cannot fully capture the dynamics in the strong driving limit. Comprehensive studies beyond these […]


Continue.. Resolving non-perturbative renormalization of a microwave-dressed weakly anharmonic superconducting qubit