419 citations
- Massachusetts Institute of TechnologyUS181 papers
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24 papers · 1 filter
Non-adiabatic quantized charge pumping with tunable-barrier quantum dots: a review of current progress
Bernd Kaestner, Vyacheslavs Kashcheyevs
Precise manipulation of individual charge carriers in nanoelectronic circuits underpins practical applications of their most basic quantum property --- the universality and invaria…
New results on classical and quantum counter automata
Masaki Nakanishi, Abuzer Yakaryılmaz, Aida Gainutdinova
We show that one-way quantum one-counter automaton with zero-error is more powerful than its probabilistic counterpart on promise problems. Then, we obtain a similar separation res…
Fast Matrix Multiplication: Limitations of the Laser Method
Andris Ambainis, Yuval Filmus, François Le Gall
Until a few years ago, the fastest known matrix multiplication algorithm, due to Coppersmith and Winograd (1990), ran in time . Recently, a surge of activity by Stot…
Tighter Relations Between Sensitivity and Other Complexity Measures
Andris Ambainis, Mohammad Bavarian, Yihan Gao +3
Sensitivity conjecture is a longstanding and fundamental open problem in the area of complexity measures of Boolean functions and decision tree complexity. The conjecture postulate…
Relaxation mechanisms affecting magneto-optical resonances in an extremely thin cell: experiment and theory for the cesium D line
M. Auzinsh, A. Berzins, R. Ferber +5
We have measured magneto-optical signals obtained by exciting the line of cesium atoms confined to an extremely thin cell (ETC), whose walls are separated by less than one mi…
The High A(V) Quasar Survey: Reddened quasi-stellar objects selected from optical/near-infrared photometry - II
J. -K. Krogager, S. Geier, J. P. U. Fynbo +9
Quasi-stellar objects (QSOs) whose spectral energy distributions (SEDs) are reddened by dust either in their host galaxies or in intervening absorber galaxies are to a large degree…