Search Results - "Pekola, J.P"

Thermodynamics in Single-Electron Circuits and Superconducting Qubits by Pekola, J.P, Khaymovich, I.M

“…Classical and quantum electronic circuits provide ideal platforms to investigate stochastic thermodynamics, and they have served as a stepping stone to realize…”
Get full text

Coulomb Blockade Thermometry on a Wide Temperature Range by Hahtela, O.M., Kemppinen, A., Lehtinen, J., Manninen, A.J., Mykkanen, E., Prunnila, M., Yurttagul, N., Blanchet, F., Gramich, M., Karimi, B., Mannila, E.T., Muhojoki, J., Peltonen, J.T., Pekola, J.P.

“…The Coulomb Blockade Thermometer (CBT) is a primary thermometer for cryogenic temperatures, with demonstrated operation from below 1 mK up to 60 K. Its…”
Get full text

Calorimetry of a phase slip in a Josephson junction by Gümüş, E., Majidi, D., Nikolić, D., Raif, P., Karimi, B., Peltonen, J. T., Scheer, E., Pekola, J. P., Courtois, H., Belzig, W., Winkelmann, C. B.

“…Josephson junctions are a central element in superconducting quantum technology; in these devices, irreversibility arises from abrupt slips of the quantum…”
Get full text

Origin of hysteresis in a proximity josephson junction by Courtois, H, Meschke, M, Peltonen, J T, Pekola, J P

“…We investigate hysteresis in the transport properties of superconductor-normal-metal-superconductor (S-N-S) junctions at low temperatures by measuring directly…”
Get full text

Multifractality of random eigenfunctions and generalization of Jarzynski equality by Khaymovich, I.M., Koski, J.V., Saira, O.-P., Kravtsov, V.E., Pekola, J.P.

“…Systems driven out of equilibrium experience large fluctuations of the dissipated work. The same is true for wavefunction amplitudes in disordered systems…”
Get full text

Microrefrigeration by normal-metal/insulator/superconductor tunnel junctions by Leivo, M.M., Manninen, A.J., Pekola, J.P.

“…A normal-metal/insulator/superconductor (NIS) tunnel junction can be applied to cool electrons by biasing the junction suitably with external voltage. Because…”
Get full text

Detecting non-Gaussian current fluctuations using a Josephson threshold detector by Peltonen, J.T., Timofeev, A.V., Meschke, M., Heikkilä, T.T., Pekola, J.P.

“…We employ a hysteretic Josephson junction in on-chip detection of shot noise generated in a tunnel junction. The switching rate of the detector from its…”
Get full text

Calorimetric Readout of a Superconducting Proximity-Effect Thermometer by Meschke, M., Peltonen, J. T., Courtois, H., Pekola, J. P.

“…A proximity-effect thermometer measures the temperature dependent critical supercurrent in a long superconductor—normal metal—superconductor (SNS) Josephson…”
Get full text

Refrigeration of a dielectric membrane by superconductor/insulator/normal-metal/insulator/superconductor tunneling by Manninen, A. J., Leivo, M. M., Pekola, J. P.

“…We have applied tunneling of electrons between a normal metal and a superconductor to refrigerate a thin dielectric membrane attached to the normal electrode…”
Get full text

Transport and extraction of radioactive ions stopped in superfluid helium by Huang, W.X., Dendooven, P., Gloos, K., Takahashi, N., Arutyunov, K., Pekola, J.P., Äystö, J.

“…A new approach to convert a high energy beam to a low energy one, which is essential for the next generation radioactive ion beam facilities, has been proposed…”
Get full text

Microrefrigeration by quasiparticle tunnelling in NIS and SIS junctions by Pekola, J.P, Manninen, A.J, Leivo, M.M, Arutyunov, K, Suoknuuti, J.K, Suppula, T.I, Collaudin, B

“…A solid-state refrigeration method at sub-kelvin temperatures has been developed. It is based on quasiparticle tunnelling between a superconductor and a normal…”
Get full text

Production of zero energy radioactive beams through extraction across superfluid helium surface by Takahashi, N., Huang, W.X., Gloos, K., Dendooven, P., Pekola, J.P., Äystö, J.

“…A radioactive 223 Ra source was immersed in superfluid helium at 1.2– 1.7 K . Electric fields transported recoiled 219 Rn ions in the form of snowballs to the…”
Get full text

Response time of a thermometer based on normal metal–insulator–superconductor (NIS) tunnel junctions by Kivioja, J.M., Maasilta, I.J., Pekola, J.P., Karvonen, J.T.

“…We have measured the thermal response of a superconductor–normal metal–superconductor (SINIS) tunnel junction structure at substrate temperature ∼60 mK by…”
Get full text

Interference of nonequilibrium quasiparticles in a superconductor by Arutyunov, K.Yu, Hongisto, T.T., Pekola, J.P.

“…We have observed an interference of nonequilibrium quasiparticles, injected from a copper electrode into an aluminium loop through a tunnel barrier. At…”
Get full text

Electron–phonon coupling in degenerate silicon-on-insulator film probed using superconducting Schottky junctions by Prunnila, M, Ahopelto, J, Savin, A.M, Kivinen, P.P, Pekola, J.P, Manninen, A.J

“…Energy flow rate in degenerate n-type silicon-on-insulator (SOI) film is studied at low temperatures. The electrons are heated above the lattice temperature by…”
Get full text

Cooper pair sluice: A fast and accurate single-island charge pump by Niskanen, A.O., Kivioja, J., Pekola, J.P., Seppa, H.

“…We have carried out first measurements on a novel type of a charge pump nicknamed the Cooper pair "sluice". The device is an adiabatic flux-assisted Cooper…”
Get full text

Feasibility of Coulomb blockade thermometry in metrology by Manninen, A.J, Kauppinen, J.P, Farhangfar, S, Taskinen, L.J.T, Pekola, J.P

“…Coulomb blockade thermometer (CBT) is a simple, magnetic-field-independent primary thermometer for everyday use at cryogenic temperatures. Its properties are…”
Get full text

Characterisation of Cooper pair boxes for quantum computing by Toppari, J.J., Hansen, K., Kim, N., Savolainen, M.T., Taskinen, L., Pekola, J.P.

“…We have measured and characterised superconducting single Cooper pair boxes (SCB) using superconducting single electron transistor (SET) fabricated on the same…”
Get full text

Unconventional behavior of superconducting nanostructures by Arutyunov, K.Yu, Farhangfar, Sh, Presnov, D.A, Pekola, J.P

“…Various aluminium nanostructures have been studied experimentally. Unusual nonmonotonous dependence of the critical current on external magnetic field has been…”
Get full text

Coulomb blockade nanothermometer by Kauppinen, J.P., Pekola, J.P.

“…Reliable thermometry is normally based on commercial secondary sensors which are factory calibrated. Primary thermometers exist, too, but their use is limited…”
Get full text