پژوهشگاه دانش‌های بنیادی
پژوهشکدهٔ ریاضیات

Combinatorics and Computing Weekly Seminar سمینار هفتگی ترکیبیات و محاسبه

Error Exponent for Classical-Quantum Channel Coding

Salman Beigi  

Wednesday, October 4, 2023,   14:00 - 15:00

VENUE   Lecture Hall 1, Niavaran Bldg.



The HSW (Holevo-Schumacher-Westmoreland) theorem characterizes the capacity of noisy quantum channels for the transmission of classical information. Since the works of Holevo (1998) and Schumacher-Westmoreland (1997) several questions regarding the problem of classical-quantum channel coding, including finite blocklength bounds, second-order analysis and strong converse bounds have been answered. Nevertheless, the optimal error exponent for the classical-quantum channel coding has remained as an open problem for more than two decades. In this talk, a new decoder and a new lower bound on the error exponent of classical-quantum channel coding is presented. This bound on the error exponent is the first such bound that is tight for fully classical channels. This talk is based on a joint work with Marco Tomamichel.

Meeting ID : 834 0734 0293
Passcode : 362880


تهران، ضلع‌ جنوبی ميدان شهيد باهنر (نياوران)، پژوهشگاه دانش‌های بنيادی، پژوهشکده رياضيات
School of Mathematics, Institute for Research in Fundamental Sciences (IPM), Niavaran Bldg., Niavaran Square, Tehran
ipmmath@ipm.ir   ♦   +98 21 22290928   ♦  math.ipm.ir