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[Fizinfo] BME Elm. Fiz. Szeminárium, márc. 6. Himanshu Gaur

From: Kormos Márton <kormos.marton AT ttk.bme.hu>
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Subject: [Fizinfo] BME Elm. Fiz. Szeminárium, márc. 6. Himanshu Gaur
Date: Wed, 4 Mar 2026 12:13:37 +0000
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MEGHÍVÓ

BME Elméleti Fizika Szeminárium,

márc. 6. péntek 10h15,

1111 Budapest, Budafoki út 8., BME F III. magasföldszint 01.,
Elméleti Fizika Tanszék szemináriumi szoba

Himanshu Gaur (BME Elm. Fiz. Tanszék)
CCNR Negativity of Compact Boson for multiple disjoint intervals

Entanglement and Rényi entropies provide complete characterisation of
entanglement for pure states in bipartite systems. These entanglement
measures also encode the universal behaviour of quantum critical points,
especially in one dimension. However, these entropy-based entanglement
measures fail when the system is in a mixed state. For mixed states
separability criterion are studied. While partial transpose criterion has
been much studied, the computable cross norm ratio (CCNR) criteria has
received much less attention, especially in quantum many body contexts. The
mixed state entanglement measures are also known to encode the universal
behaviour of quantum critical points. In this talk I'll discuss the
computation of Rényi CCNR negativity in compact boson CFT to characterise
bipartite mixed state entanglement between multiple disjoint intervals.

Minden érdeklődőt szeretettel várunk.

A további program megtekinthető itt: https://dtp.physics.bme.hu/TheorySeminars

Kormos Márton,
szemináriumi koordinátor

[Fizinfo] BME Elm. Fiz. Szeminárium, márc. 6. Himanshu Gaur, Kormos Márton, 03/04/2026