23,450 research outputs found
Determinant bundle in a family of curves, after A. Beilinson and V. Schechtman
In Comm. Math. Physics 118 (1988), 651-701, A. Beilinson and V. Schechtman
define on the total space of a smooth family of curves a so-called trace
complex associated to a vector bundle, the 0-th relative cohomology of which is
the Atiyah algebra of the determinant bundle. Their proof reduces the general
case to the acyclic one. In particular, one needs a comparison of the image of
the trace complex for a bundle, and its twist by an \'etale multisection. We
analyse this and correct a point in the original proof.Comment: 6 pages, Latex 2
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Nivolumab plus ipilimumab in the treatment of advanced melanoma.
Advanced melanoma has historically been a difficult disease to treat due to few effective systemic treatment options. However, over the past few years, scientific advancements in immune checkpoint inhibition have resulted in several novel approaches that have changed front-line management of advanced melanoma. Despite these exciting developments, there remains room for improvement in treatment outcomes. Combination immunotherapy, in particular combined cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) and programmed death 1 (PD-1) blockade, represents an important first step in this direction
Digital Switching in the Quantum Domain
In this paper, we present an architecture and implementation algorithm such
that digital data can be switched in the quantum domain. First we define the
connection digraph which can be used to describe the behavior of a switch at a
given time, then we show how a connection digraph can be implemented using
elementary quantum gates. The proposed mechanism supports unicasting as well as
multicasting, and is strict-sense non-blocking. It can be applied to perform
either circuit switching or packet switching. Compared with a traditional space
or time domain switch, the proposed switching mechanism is more scalable.
Assuming an n-by-n quantum switch, the space consumption grows linearly, i.e.
O(n), while the time complexity is O(1) for unicasting, and O(log n) for
multicasting. Based on these advantages, a high throughput switching device can
be built simply by increasing the number of I/O ports.Comment: 24 pages, 16 figures, LaTe
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