Strong tunable coupling between a superconducting charge and phase qubit (2007)
Fay, A., Hoskinson, E., Lecocq, F., Lévy, L. P., Hekking, F. W. J., Guichard, W., ...
We have realized a tunable coupling over a large frequency range between an asymmetric Cooper pair transistor (charge qubit) and a dc SQUID (phase qubit). Our circuit enables the independent...
Decoherence processes in a current biased dc SQUID (2006)
Claudon, J., Fay, A., Lévy, L. P., Buisson, O.
A current bias dc SQUID behaves as an anharmonic quantum oscillator controlled by a bias current and an applied magnetic flux. We consider here its two level limit consisting of the two lower energy...
Decoherence processes in a current biased dc SQUID (2006)
Claudon, J., Fay, A., Lévy, L. P., Buisson, O.
A current biased dc superconducting quantum interference device behaves as an anharmonic quantum oscillator controlled by a bias current and an applied magnetic flux. We consider here its two level...
How free are Composite Fermions at $\nu = 1/2$? A NMR investigation (2002)
Freytag, N., Horvatić, M., Berthier, C., Shayegan, M., Lévy, L. P.
NMR measurements of the electron spin polarization have been performed on a 2D electron system at and around half-filled lowest Landau level. Comparing the magnetic field and the temperature...
Hassan, A. K., Lévy, L. P., Darie, C., Strobel, P.
In the Heisenberg antiferromagnet $Gd_2Ti_2O_7$, the exchange interactions are geometrically frustrated by the pyrochlore lattice structure. This ESR study reveals a strong temperature dependent...
NMR investigation of how free composite fermions are at ν=1/2 (2002)
Freytag, N., Horvatić, M., Berthier, C., Shayegan, M., Lévy, L. P.
NMR measurements of the electron spin polarization (P) have been performed on a 2D electron system at and around half- filled lowest Landau level. Comparing the magnetic field and the temperature...
Resonant Cooper pair tunneling through a double-island Qubit (2002)
Bibow, E., Lafarge, P., Lévy, L. P.
We have measured transport in the Coulomb blockade regime through a quantum system consisting of two superconducting islands coupled by a Josephson junction. The double island is weakly connected to...
Unpolarizable ground states in the fractional quantum Hall effect at ν=2/3 (2002)
Freytag, N., Tokunaga, Y., Horvatic, M., Berthier, C., Shayegan, M., Lévy, L. P.
Magnetization and orbital properties of the two-dimensional electron gas in the quantum limit (2001)
Wiegers, S., Bibow, E., Lévy, L. P., Bayot, V., Simmons, M., Shayegan, M.
High magnetic field NMR studies of quantum spin chains and ladders (2000)
Berthier, C., Horvatić, M., Fagot-Revurat, Y., Chaboussant, G., Mayaffre, H., ...
High-field magnetic phases of a two-leg spin ladder: Cu2(C5H12N2)2Cl4 (2000)
Chaboussant, G., Fagot-Revurat, Y., Mayaffre, H., Horvatić, M., Lévy, L. P., ...
NMR determination of 2D electron spin polarization at ν=1/2 (2000)
Melinte, S., Freytag, N., Horvatić, M., Berthier, C., Lévy, L. P., Bayot, V., ...
Magnetization of an imcompressible two-dimensional electron gas. (1998)
Wiegers, S. A. J., Specht, M., Bibow, E. D., Lévy, L. P., Melinte, S., Grivei, E., ...
Magnetization and incompressibility of a high mobility 2D electron gas in the IQHE. (1998)
Wiegers, S. A. J., Specht, M., Lévy, L. P., Simmons, M. Y., Ritchie, D. A., Cavanna, A., ...
Magnetization and energy gaps of a high-mobility 2D electron gas in the quantum limit. (1997)
Wiegers, S. A. J., Specht, M., Lévy, L. P., Simmons, M. Y., Ritchie, D. A., Cavanna, A., ...
The Magnetization of Cu_2(C_5H_{12}N_2)_2Cl_4 : A Heisenberg Spin Ladder System (1996)
Hayward, C. A., Poilblanc, D., Lévy, L. P.
We study the magnetization of a Heisenberg spin ladder using exact diagonalization techniques, finding three distinct magnetic phases. We consider the results in relation to the experimental...