fizinfo AT lists.kfki.hu

Subject: ELFT HÍRADÓ

List archive

[Fizinfo] BME ElmFiz szeminárium, máj. 29. Yigal Meir

From: Kormos Márton <kormos.marton AT ttk.bme.hu>
To: "fizinfo AT lists.kfki.hu" <fizinfo AT lists.kfki.hu>, "elmfiz.oktatok-kutatok AT lists.bme.hu" <elmfiz.oktatok-kutatok AT lists.bme.hu>, "elmfiz.hallgatok AT lists.bme.hu" <elmfiz.hallgatok AT lists.bme.hu>
Subject: [Fizinfo] BME ElmFiz szeminárium, máj. 29. Yigal Meir
Date: Wed, 27 May 2026 08:50:20 +0000
Accept-language: en-GB, en-US
Arc-authentication-results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=ttk.bme.hu; dmarc=pass action=none header.from=ttk.bme.hu; dkim=pass header.d=ttk.bme.hu; arc=none
Arc-message-signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=JKKVzXZ2KjdniHzzUwxE9mXuTMjrWSaiPl08DC4vOsI=; b=Ss+SYx9Rr4Dd+I6BEVCpeHgkEE9jXcsRDunNnxIawxxCVRf4ecLinCNG1nb40Gna4RsORVO7zFrN5e/wCKuSITOGPpFfbpfp0T31otSwrSoXiUAmb+8QoDbkPsUwojVSgGWb47m+G/KLNjdQZZjLig8YNjE8RJVQv39bBpJ/4jmvArXihy4+T0SDGUT50WKpaqgrCFFuxxU7XunH95N4cL5jR10QGPDyyZlxoCmdWfIV3TkH0TeC+oyX/GqW6Rk5pli9wGVoBBmhtRhRFGDU/2iFPfdbJu1G6lq7DrRWKg0yRhl6w4tSKf8QkuVS3iCGUpRcaDsZ4t7lCyKmKWHLSA==
Arc-seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=eSEoDN7rA22w/kmUI4nHYk4Iu/DTIq5cSUUXrS7IEtTs5UYpQj2JGAp1yovdGPlwePFoUmFgeY/099JQtZ1oF1+8EHzceiewBjT8vOc/Le1IGYHa3vdgcZQU+f1tbl+jXlwA+BMcsh3ZvBaeH/DXpCDugbyldpPYV/kESUUKhqrNOVuWuK2QgkPF1YKMVfUIptvcndaGNJcPSHC9FtD2qsc1v/VKmED1P0LQK5e7cyNglXEsD7/tNQEQhNl7IbP/q6h9QmKIG3lEmY6XolZ1W1QAxmRf95frtO3BB/TSC+hbqsM7uW5OtMFvyuQufFqEYLmvSmN7iadFx1jgWD5gmw==
Authentication-results: smtp012.wigner.hu (Sympa); arc=pass (as.1.microsoft.com=pass, ams.1.microsoft.com=pass)
Authentication-results: smtp012.wigner.hu (amavis); dkim=pass (2048-bit key) header.d=ttk.bme.hu
Authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=ttk.bme.hu;

MEGHÍVÓ

BME Elméleti Fizika Szeminárium,

máj. 29. péntek 10h15,

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

Yigal Meir (Ben Gurion University)

Measuring Entropy of Exotic Particles

In recent years many candidate setups have been proposed to support exotic
quasi-particles, such as Majorana fermions (MFs), which may be relevant for
quantum computing, but whether these particles have been observed
experimentally is currently a topic of a vivid debate. Entropy measurements
can unambiguously separate these quasi-particles from other, simpler
excitations. The entropy of a MFs is, for example, log2/2 (in units of the
Boltzman constant), a fractional value that cannot be attributed to a
localized excitation. However, standard entropy measurements applicable to
bulk systems cannot be utilized in measuring the additional entropy of a
mesoscopic device, which may be due to less than a single electron in the
device. In this talk I will describe recent theoretical and experimental
progress in performing such measurements, either using thermopower and/or
using the Maxwell relations. Lastly I will discuss the backaction of the
measurement and show how they can lead to an Anderson overlap catastrophe and
Fermi edge singularity.

Minden érdeklődőt szeretettel várunk.

A további program megtekinthető itt: https://physics.ttk.bme.hu/theoryseminars

Kormos Márton,
szemináriumi koordinátor

[Fizinfo] BME ElmFiz szeminárium, máj. 29. Yigal Meir, Kormos Márton, 05/27/2026