Quantum thermodynamics with a single superconducting vortex
arXiv:2402.06427 · doi:10.1126/sciadv.ado4032
Abstract
We demonstrate complete control over dynamics of a single superconducting vortex in a nanostructure which we coin the Single Vortex Box (SVB). Our device allows us to trap the vortex in a field-cooled aluminum nanosquare and expel it on demand with a nanosecond pulse of electrical current. We read-out the vortex state of the box by testing the switching current of the adjacent Dayem nanobridge. Using the time-resolving nanothermometry we measure 410J as the amount of the dissipated heat (which is the energy of a single red photon) in the elementary process of the vortex expulsion, and monitor the following thermal relaxation of the device. The measured heat is equal to the energy required to annihilate all Cooper pairs on the way of the moving vortex. Our design and measuring protocol are convenient for studying the stochastic mechanism of the vortex escape from current-driven superconducting nanowires, which has its roots either in thermal or quantum fluctuations, similar to ones widely studied in Josephson junctions or magnetic nanoclusters and molecules. Our experiment enlightens the thermodynamics of the absorption process in the superconducting nanowire single-photon detectors, in which vortices are perceived to be essential for a formation of a detectable hot spot. The demonstrated opportunity to manipulate a single superconducting vortex reliably in a confined geometry comprises in fact a proof-of-concept of a nanoscale non-volatile memory cell with sub-nanosecond write and read operations, which offers compatibility with quantum processors based either on superconducting qubits or rapid single flux quantum circuits.
References in corpus (34)
- The Physics of Maxwell's demon and information
- Quantum Phase Slips in Superconducting Nanowires
- On-chip Maxwell's demon as an information-powered refrigerator
- Quantum limit of heat flow across a single electronic channel
- Single-mode heat conduction by photons
- Experiments in vortex avalanches
- Nanoscale thermal imaging of dissipation in quantum systems
- Observed Quantization of Anyonic Heat Flow
- Imaging of super-fast dynamics and flow instabilities of superconducting vortices
- Size Dependent Breakdown of Superconductivity in Ultranarrow Nanowires
- Density of states in a superconductor carrying a supercurrent
- Vortex-induced dissipation in narrow current-biased thin-film superconducting strips
- Ultra-fast vortex motion in dirty Nb-C superconductor with a close-to-perfect edge barrier
- Bidirectional Single-Electron Counting and the Fluctuation Theorem
- Probing individual topological tunnelling events of a quantum field via their macroscopic consequences
- Evidence for long-lived quasiparticles trapped in superconducting point contacts
- Recombination limited energy relaxation in a BCS superconductor
- Quantum fluctuations in ultranarrow superconducting nanowires
- Single Quasiparticle Trapping in Aluminum Nanobridge Josephson Junctions
- Nanosecond thermometry with Josephson junction
- Preliminary demonstration of a persistent Josephson phase-slip memory cell with topological protection
- Weber blockade in superconducting nanowires
- Calorimetry of a Quantum Phase Slip
- Thermally driven inhibition of superconducting vortex avalanches
- Imaging pinning and expulsion of individual superconducting vortices in amorphous MoSi thin films
- Chip-Integrated Vortex Manipulation
- Weber blockade theory of magnetoresistance oscillations in superconducting strips
- Josephson vortex-based memory
- Frequency to power conversion by an electron turnstile
- Gambling with superconducting fluctuations
- Transition-Edge Sensors for cryogenic X-ray imaging spectrometers
- Probing confined vortices with a superconducting nanobridge
- Heat hunting in freezer: Direct measurement of quasiparticle diffusion in superconducting nanowire
- Stochastic thermal feedback in switching measurements of superconducting nanobridge caused by overheated electrons and phonons
Cited by in corpus (4)
- Microwave Microscope Studies of Trapped Vortex Dynamics in Superconductors
- Nonvolatile Cryogenic Phase Slip Memory with Single-Shot Readout
- Numerical modelling of a vortex-based superconducting memory cell: dynamics and geometrical optimization of a fluxonic quantum dot
- Quantum Mechanics of an Abrikosov Vortex in Nanofabricated Pinning Potential