Upload File

introduction

9
Introduction

Upload: palma

Post on 13-Jan-2016

29 views

Category:

Documents


0 download

Report

Tags:

DESCRIPTION

Introduction. The Quantum World. The “Schrödinger’s Cat” Experiment (1935). The cat is isolated from the environment. The state of the cat is entangled to the one of a typical quantum system : an atom !. “alive”. “dead”. The Quantum World. AND ?. - PowerPoint PPT Presentation

TRANSCRIPT

Page 1: Introduction

Introduction

Page 2: Introduction

2

The Quantum World

The “Schrödinger’s Cat” Experiment (1935)

The cat is isolated from the environment

The state of the cat is entangled to the one of a typical quantum system : an atom !

Page 3: Introduction

3

The Quantum World

The cat is actually a detector of the atom’s state

• Result “dead” : the atom is disintegrated

• Result “alive” : the atom is excited

“dead”“alive”

AND ?

Entanglement

Page 4: Introduction

4

AND ?OR !

“dead”“alive”

The Quantum World

Quantum Decoherence : Interaction with the environment leads to a transition into a more classical behavior, in agreement with the common intuition !

Page 5: Introduction

5

The Quantum World

Measurement Postulate

The state of the measured system, just after a measurement, is the state in which we measure the system.

Before the measurement : the system can be in a superposition of different states. One can only make predictions about measurement results.

After the measurement : Update of the state provided by the measurement …

Measurement Problem ?

Page 6: Introduction

6

The Wigner’s Friend

Effects of an

observation ?

Amplification of Vital Signs

Page 7: Introduction

7

Quantum properties of Human Eyes

Wigner representation of the POVM element describing the perception of light

Quantum state retrodicted from the light perception

Page 8: Introduction

8

Quantum state of the cat (C), the light (D) and the atom (N)

State conditioned on the light perception

Effects of an observation

Quantum decoherence induced by the observation

Page 9: Introduction

9

Let us imagine a detector of “Schrödinger’s Cat” states of light

Effects of this measurement (projection postulate)

Interests of a non-classical measurement

Quantum coherences are preserved !

“AND”


Introducción / Introduction / Introduction

Introduction Chapitre 1 · Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1. Introduction 1. Introduction 1. Introduction 1 ... · Introduction 1. Introduction 1. Introduction 1. Introduction 6061B0242401. The Phone Screen From the Phone screen, you can

URBAN STREAM REHABILITATION. INTRODUCTION, OBJECTIVES & IMPACTS INTRODUCTION, OBJECTIVES & IMPACTS INTRODUCTION, OBJECTIVES & IMPACTS INTRODUCTION, OBJECTIVES

Introduction Introduction Introduction Introduction

Introduction: Definition Introduction: Philosophy

An Introduction to NSAn Introduction to NS2An Introduction ...teerawat/publications/NS2/02-NS2.pdf · An Introduction to NSAn Introduction to NS2An Introduction to NS2 Textbook: T

The Sacrament of Baptism Introduction Video Introduction Video The Sacrament of Baptism Introduction Video Introduction Video

Introduction - daks2k3a4ib2z.cloudfront.net€¦ · Introduction Establishedin1974MarbleHillFireplacesofferoneofthelargestandmostcomprehensiveselectionsof …

Introduction & Strategy Module Introduction & Administrative

 · Introduction . 6 . Contents . Introduction

Optimisation des Requêtes. Introduction Introduction

INTRODUCTIONS (LEADS) Academic introduction Creative introduction Action introduction Dialogue introduction Overarching societal statements Personal introduction

Introduction to Transducers, Introduction to Transducers ...engtech.weebly.com/.../more_on_transducers_sensors_actuators.pdf · Introduction to Transducers, Introduction to Transducers,

Module: Introduction...Module: Introduction Page: Introduction CC0.1 Introduction Please give a general description and introduction to your organization. Providing electrical, hydraulic

An Introduction to NSAn Introduction to NS2An Introduction to NS2 · 2016. 8. 26. · An Introduction to NSAn Introduction to NS2An Introduction to NS2 Textbook: T. Issariyakul and

CrowPiwithMineCraftPiEdition · 2 CrowPiwithMineCraftPiEdition-Introduction-MinecraftPiEdition-Introduction-Whatyouwillneed-Introduction-RunningMinecraft-Introduction

Introduction Introduction (ctnd.)

Introduction 1. Introduction

1. Introduction 10 - therackonline.com€¦ · 1. Introduction 10 - therackonline.com ... Introduction)

1. INTRODUCTION • INTRODUCTION • EINFÜHRUNG • INLEIDING • INTRODUCCIÓN … · 2016-12-16 · 1. INTRODUCTION • INTRODUCTION • EINFÜHRUNG • INLEIDING • INTRODUCCIÓN

Systems Analysis I introduction I introduction. 2Systems Analysis - Introduction Contents Introduction Introduction 3 classic phases 3 classic phases

1. INTRODUCTION INTRODUCTION - Deusto

Industry introduction Industry introduction Company introduction Company introduction Production introduction Display time time content

Introduction€¦ · Introduction ThisdocumentprovidesinformationabouttheIOSXEsoftwarereleasefortheCiscoNCS4201andCisco …

1. INTRODUCTION 1.1 Introduction

voip-iptel-introduction-SRK1.ppt voip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-iptel-introduction-SRK1.pptvoip-ip

§1.1.1 INTRODUCTION: 1. INTRODUCTION

R as a Web Service Introduction Introduction Introduction

Topics Introduction 1 / 3 Introduction 2 / 3 Introduction 3 / 3

An Introduction for An Introduction for Introduction for ......An Introduction for An Introduction for Introduction for TeachersTeachersTeachers . exChange, Blackburn Cathedral’s

INTRODUCTION SPECIFICATIONS INTRODUCTION

INTRODUCTIONS (LEADS) Creative introduction Action introduction Dialogue introduction Personal introduction Question introduction Quotation introduction

 · Contents INTRODUCTION Introduction

PRODUCT INTRODUCTION Company Introduction