Graphene Josephson Junctions for Engineering Motional Quanta
arXiv:2601.19324 · doi:10.1103/ry8b-y68x
Abstract
We propose a hybrid quantum device based on the graphene Josephson junctions, where the vibrational degrees of freedom of a graphene membrane couple to the superconducting circuits. The flexural mode-controlled tunneling of the Cooper pairs introduces a strong and tunable coupling even at the zero-point fluctuations level. By employing this interaction, we show that a parametric process can be efficiently implemented. We then investigate foundational and technological applications of our hybrid device empowered by nonlinear interactions, with fast generation of non-classical mechanical states, and critically enhanced quantum sensing under suitable quantum control. Our work provides the possibility of employing the graphene motional degree of freedom for quantum information processing in circuit quantum nanomechanical structures.
References in corpus (60)
- Advances in Quantum Metrology
- Charge insensitive qubit design derived from the Cooper pair box
- Quantifying Coherence
- Hybrid quantum circuits: Superconducting circuits interacting with other quantum systems
- Bipolar supercurrent in graphene
- Ultrastrong coupling regimes of light-matter interaction
- Quantum metrology from a quantum information science perspective
- Quantum Fisher information matrix and multiparameter estimation
- Optical detection of radio waves through a nanomechanical transducer
- Nanomechanical Resonators and Their Applications in Biological/Chemical Detection: Nanomechanics Principles
- The Kerr-Cat Qubit: Stabilization, Readout, and Gates
- Quantum Phase Transition and Universal Dynamics in the Rabi model
- Testing the limits of quantum mechanical superpositions
- Mechanical systems in the quantum regime
- Measurement-based quantum control of mechanical motion
- A quantum spin transducer based on nano electro-mechancial resonator arrays
- Josephson effect in ballistic graphene
- Graphene mechanical oscillators with tunable frequency
- Macroscopic Quantum Superposition in Cavity Optomechanics
- Dynamic framework for criticality-enhanced quantum sensing
- Graphene-based Josephson junction microwave bolometer
- Mesoscopic physics of nanomechanical systems
- A resource theory of superposition
- Quantum-enhanced sensing of a mechanical oscillator
- Tunnelling Spectroscopy of Andreev States in Graphene
- High quality factor graphene-based 2D heterostructure mechanical resonator
- Observing and Verifying the Quantum Trajectory of a Mechanical Resonator
- Developing a platform for linear mechanical quantum computing
- Review: Quantum Metrology and Sensing with Many-Body Systems
- Dissipative optomechanical preparation of macroscopic quantum superposition states
- A graphene transmon operating at 1 T
- Controlled crossed Andreev reflection and elastic co-tunneling mediated by Andreev bound states
- A ballistic graphene superconducting microwave circuit
- A critical Schrödinger cat qubit
- Driving enhanced quantum sensing in partially accessible many-body systems
- Critical Quantum Metrology with Fully-Connected Models: From Heisenberg to Kibble-Zurek Scaling
- Quantum State Engineering with Circuit Electromechanical Three-Body Interactions
- A Tunable Monolithic SQUID in Twisted Bilayer Graphene
- A gate-tunable graphene Josephson parametric amplifier
- Quantum noise limited microwave amplification using a graphene Josephson junction
- Quantum Phase Transitions in Optomechanical Systems
- Displacemon electromechanics: how to detect quantum interference in a nanomechanical resonator
- Optimality and Noise-Resilience of Critical Quantum Sensing
- Quantum Effects in a Mechanically Modulated Single Photon Emitter
- Phase-dependent microwave response of a graphene Josephson junction
- Real photons from vacuum fluctuations in optomechanics: the role of polariton interactions
- Andreev processes in mesoscopic multi-terminal graphene Josephson junctions
- Fundamental limits of metrology at thermal equilibrium
- Collective quantum enhancement in critical quantum sensing
- Boundary Time Crystals as AC sensors: enhancements and constraints
- Genuine quantum non-Gaussianity and metrological sensitivity of Fock states prepared in a mechanical resonator
- Programmable Quantum Processors based on Spin Qubits with Mechanically-Mediated Interactions and Transport
- Exponentially-enhanced quantum sensing with many-body phase transitions
- Deterministic multi-phonon entanglement between two mechanical resonators on separate substrates
- Continuous variable multipartite vibrational entanglement
- Supercurrent mediated by helical edge modes in bilayer graphene
- Controllable Andreev Bound States in Bilayer Graphene Josephson Junction from Short to Long Junction Limits
- Gate-defined superconducting channel in magic-angle twisted bilayer graphene
- Unitary death of Schrödinger's cat
- Self-heating effects and switching dynamics in graphene multiterminal Josephson junctions