E. Zalys-Geller
Yale University
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Publication
Featured researches published by E. Zalys-Geller.
Physical Review X | 2016
A. Narla; S. Shankar; M. Hatridge; Zaki Leghtas; Katrina Sliwa; E. Zalys-Geller; S.O. Mundhada; Wolfgang Pfaff; Luigi Frunzio; R. J. Schoelkopf; Michel H. Devoret
Entangling two remote quantum systems which never interact directly is an essential primitive in quantum information science and forms the basis for the modular architecture of quantum computing. When protocols to generate these remote entangled pairs rely on using traveling single photon states as carriers of quantum information, they can be made robust to photon losses, unlike schemes that rely on continuous variable states. However, efficiently detecting single photons is challenging in the domain of superconducting quantum circuits because of the low energy of microwave quanta. Here, we report the realization of a robust form of concurrent remote entanglement based on a novel microwave photon detector implemented in the superconducting circuit quantum electrodynamics (cQED) platform of quantum information. Remote entangled pairs with a fidelity of
Physical Review Letters | 2016
U. Vool; S. Shankar; S.O. Mundhada; Nissim Ofek; A. Narla; Katrina Sliwa; E. Zalys-Geller; Yehan Liu; Luigi Frunzio; R. J. Schoelkopf; S. M. Girvin; Michel H. Devoret
0.57\pm0.01
Physical Review A | 2016
Matti Silveri; E. Zalys-Geller; M. Hatridge; Zaki Leghtas; Michel H. Devoret; S. M. Girvin
are generated at
Physical Review Letters | 2018
Philippe Campagne-Ibarcq; E. Zalys-Geller; A. Narla; S. Shankar; Philip Reinhold; Luke Burkhart; Christopher Axline; Wolfgang Pfaff; Luigi Frunzio; R. J. Schoelkopf; Michel H. Devoret
200
Bulletin of the American Physical Society | 2018
Phillipe Campagne-Ibarcq; E. Zalys-Geller; A. Narla; S. Shankar; Christopher Axline; Luke Burkhart; Wolfgang Pfaff; Philip Reinhold; Luigi Frunzio; R. J. Schoelkopf; Michel H. Devoret
Hz. Our experiment opens the way for the implementation of the modular architecture of quantum computation with superconducting qubits.
Bulletin of the American Physical Society | 2018
E. Zalys-Geller; Philippe Campagne-Ibarcq; A. Narla; S. Shankar; Christopher Axline; Luke Burkhart; Wolfgang Pfaff; Luigi Frunzio; R. J. Schoelkopf; Michel H. Devoret
Quantum jumps of a qubit are usually observed between its energy eigenstates, also known as its longitudinal pseudospin component. Is it possible, instead, to observe quantum jumps between the transverse superpositions of these eigenstates? We answer positively by presenting the first continuous quantum nondemolition measurement of the transverse component of an individual qubit. In a circuit QED system irradiated by two pump tones, we engineer an effective Hamiltonian whose eigenstates are the transverse qubit states, and a dispersive measurement of the corresponding operator. Such transverse component measurements are a useful tool in the driven-dissipative operation engineering toolbox, which is central to quantum simulation and quantum error correction.
Bulletin of the American Physical Society | 2017
Zlatko Minev; S.O. Mundhada; E. Zalys-Geller; S. Shankar; P. Rheinhold; Luigi Frunzio; R.J. Schoelkopf; Mazyar Mirrahimi; M. H. Devoret
We show that a quantum-limited phase-preserving amplifier can act as a which-path information eraser when followed by heterodyne detection. This “beam splitter with gain” implements a continuous joint measurement on the signal sources. As an application, we propose heralded concurrent remote entanglement generation between two qubits coupled dispersively to separate cavities. Dissimilar qubit-cavity pairs can be made indistinguishable by simple engineering of the cavity driving fields providing further experimental flexibility and the prospect for scalability. Additionally, we find an analytic solution for the stochastic master equation, a quantum filter, yielding a thorough physical understanding of the nonlinear measurement process leading to an entangled state of the qubits. We determine the concurrence of the entangled states and analyze its dependence on losses and measurement inefficiencies.
Bulletin of the American Physical Society | 2016
E. Zalys-Geller; A. Narla; S. Shankar; M. Hatridge; Matti Silveri; Katrina Sliwa; S.O. Mundhada; S. M. Girvin; Michel H. Devoret
Bulletin of the American Physical Society | 2016
S.O. Mundhada; S. Shankar; A. Narla; E. Zalys-Geller; S. M. Girvin; Michel H. Devoret
Bulletin of the American Physical Society | 2016
A. Narla; S. Shankar; M. Hatridge; Wolfgang Pfaff; Zaki Leghtas; Katrina Sliwa; E. Zalys-Geller; Luigi Frunzio; M. H. Devoret