Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Ostroukh, V."'
Autor:
Sagastizabal, R., Premaratne, S. P., Klaver, B. A., Rol, M. A., Negîrneac, V., Moreira, M., Zou, X., Johri, S., Muthusubramanian, N., Beekman, M., Zachariadis, C., Ostroukh, V. P., Haider, N., Bruno, A., Matsuura, A. Y., DiCarlo, L.
The preparation of thermal equilibrium states is important for the simulation of condensed-matter and cosmology systems using a quantum computer. We present a method to prepare such mixed states with unitary operators, and demonstrate this technique
Externí odkaz:
http://arxiv.org/abs/2012.03895
Autor:
Varbanov, B. M., Battistel, F., Tarasinski, B. M., Ostroukh, V. P., O'Brien, T. E., DiCarlo, L., Terhal, B. M.
Publikováno v:
npj Quantum Inf 6, 102 (2020)
Leakage outside of the qubit computational subspace, present in many leading experimental platforms, constitutes a threatening error for quantum error correction (QEC) for qubits. We develop a leakage-detection scheme via Hidden Markov models (HMMs)
Externí odkaz:
http://arxiv.org/abs/2002.07119
Autor:
Bultink, C. C., O'Brien, T. E., Vollmer, R., Muthusubramanian, N., Beekman, M. W., Rol, M. A., Fu, X., Tarasinski, B., Ostroukh, V., Varbanov, B., Bruno, A., DiCarlo, L.
Publikováno v:
Science Advances 20 Mar 2020: Vol. 6, no. 12
Protecting quantum information from errors is essential for large-scale quantum computation. Quantum error correction (QEC) encodes information in entangled states of many qubits, and performs parity measurements to identify errors without destroying
Externí odkaz:
http://arxiv.org/abs/1905.12731
Autor:
Sagastizabal, R., Bonet-Monroig, X., Singh, M., Rol, M. A., Bultink, C. C., Fu, X., Price, C. H., Ostroukh, V. P., Muthusubramanian, N., Bruno, A., Beekman, M., Haider, N., O'Brien, T. E., DiCarlo, L.
Publikováno v:
Phys. Rev. A 100, 010302 (2019)
Variational quantum eigensolvers offer a small-scale testbed to demonstrate the performance of error mitigation techniques with low experimental overhead. We present successful error mitigation by applying the recently proposed symmetry verification
Externí odkaz:
http://arxiv.org/abs/1902.11258
Autor:
Beenakker, C. W. J., Gnezdilov, N. V., Dresselhaus, E., Ostroukh, V. P., Herasymenko, Y., Adagideli, I., Tworzydlo, J.
Publikováno v:
Phys. Rev. B 97, 241403(R) (2018)
Dirac electrons in graphene have a valley degree of freedom that is being explored as a carrier of information. In that context of "valleytronics" one seeks to coherently manipulate the valley index. Here we show that reflection from a superlattice p
Externí odkaz:
http://arxiv.org/abs/1805.02487
Publikováno v:
New J. Phys. 20, 023016 (2018)
Recent experiments by Guti\'errez $\textit{et al.}$ [Nature Phys. $\textbf{12}$, 950 (2016)] on a graphene-copper superlattice have revealed an unusual Kekul\'e bond texture in the honeycomb lattice --- a Y-shaped modulation of weak and strong bonds
Externí odkaz:
http://arxiv.org/abs/1708.08348
Publikováno v:
Phys. Rev. B 94, 094514 (2016)
$ $The critical current of a Josephson junction is an oscillatory function of the enclosed magnetic flux $\Phi$, because of quantum interference modulated with periodicity $h/2e$. We calculate these Fraunhofer oscillations in a two-dimensional (2D) b
Externí odkaz:
http://arxiv.org/abs/1606.08247
Publikováno v:
Phys. Rev. B 91, 041409(R) (2015)
We calculate the beating of $h/2e$ and $h/e$ periodic oscillations of the flux-dependent critical supercurrent $I_c(\Phi)$ through a quantum spin-Hall insulator between two superconducting electrodes. A conducting pathway along the superconductor con
Externí odkaz:
http://arxiv.org/abs/1411.6638
It is known that homogeneous distribution of particles in Coulomb-like systems can be unstable, and spatially inhomogeneous structures can be formed. A simple method for describing such inhomogeneous systems and obtaining spacial distributions of ele
Externí odkaz:
http://arxiv.org/abs/1308.3852
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