# Seminars & Colloquia Calendar

## Born's rule for arbitrary Cauchy surfaces

#### Matthias Lienert, Rutgers University

Location: ** HILL 705**

Date & time: Thursday, 26 October 2017 at 2:00PM - 3:00PM

Abstract: Suppose that particle detectors are placed along a Cauchy surfaces Sigma in Minkowski space-time. Given an appropriate wave function psi_Sigma on Sigma, one can easily guess the respective "curved Born rule": the probability distribution of the detected configuration on Sigma has density |psi_Sigma|^2 (with |.|^2 suitably understood). However, simply postulating the curved Born rule seems neither appropriate nor necessary, as in principle the usual measurement postulates at equal times in any single Lorentz frame should already determine the results of all conceivable experiments.This situation has been the motivation of a recently finished joint work with Roderich Tumulka (arXiv:1706.07074), about which I will report in this talk. We define an idealized detection process by approximating a curved Cauchy surface by small horizontal (equal-time) pieces and prove that the probability distribution coincides with |psi_Sigma|^2. For this result, we make use of two crucial hypotheses on the time evolution: 1. no interaction faster than the speed of light, and 2. no particle creation from the vacuum.

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Wujun Zhang Organizer's webpage

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Jeffry Kahn, Bhargav Narayanan, Jinyoung Park Organizer's webpage

Brooke Ogrodnik, Website

Robert Dougherty-Bliss and Doron Zeilberger --> homepage

Paul Feehan, Daniel Ketover, Natasa Sesum Organizer's webpage

Lev Borisov, Emanuel Diaconescu, Angela Gibney, Nicolas Tarasca, and Chris Woodward Organizer's webpage

Hong Chen Seminar webpage

Brian Pinsky, Rashmika Goswami website

James Holland; Organizer website

Edna Jones Organizer's webpage

Brooke Ogrodnik website

Yanyan Li, Zheng-Chao Han, Jian Song, Natasa Sesum Organizer's Webpage

Organizer: Luochen Zhao

Yanyan Li, Zheng-Chao Han, Natasa Sesum, Jian Song Organizer's Page

Lisa Carbone, Yi-Zhi Huang, James Lepowsky, Siddhartha Sahi Organizer's webpage

Simon Thomas website

Kasper Larsen, Daniel Ocone and Kim Weston Organizer's page

Joel Lebowitz, Michael Kiessling

Yanyan Li, Haim Brezis Organizer's Webpage

Stephen D. Miller, John C. Miller, Alex V. Kontorovich, Alex Walker seminar website

Stephen D. Miller

Brooke Ogrodnik, Website

Organizers: Yanyan Li, Z.C. Han, Jian Song, Natasa Sesum

Yael Davidov Seminar webpage

Kristen Hendricks, Xiaochun Rong, Hongbin Sun, Chenxi Wu Organizer's page

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