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LIQUID HELIUM PART 1 Pradip Kumar Mondal April 22, 2020 Pradip Kumar Mondal (ESSBC) April 22, 2020 1/6
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LIQUID HELIUM PART 1

Jan 26, 2022

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Page 1: LIQUID HELIUM PART 1

LIQUID HELIUM PART 1

Pradip Kumar Mondal

April 22, 2020

Pradip Kumar Mondal (ESSBC) April 22, 2020 1 / 6

Page 2: LIQUID HELIUM PART 1

Londons explanation of superfluidity

Pradip Kumar Mondal (ESSBC) April 22, 2020 2 / 6

Page 3: LIQUID HELIUM PART 1

Londons explanation of superfluidity

Pradip Kumar Mondal (ESSBC) April 22, 2020 3 / 6

Page 4: LIQUID HELIUM PART 1

The search for condensate

Pradip Kumar Mondal (ESSBC) April 22, 2020 4 / 6

Page 5: LIQUID HELIUM PART 1

Neutron scattering

Pradip Kumar Mondal (ESSBC) April 22, 2020 5 / 6

Page 6: LIQUID HELIUM PART 1

Helium-4 condensate

Pradip Kumar Mondal (ESSBC) April 22, 2020 6 / 6

Page 7: LIQUID HELIUM PART 1

Helium-4 superfluid

Pradip Kumar Mondal (ESSBC) April 22, 2020 7 / 6

Page 8: LIQUID HELIUM PART 1

Two-fluid model

Pradip Kumar Mondal (ESSBC) April 22, 2020 8 / 6

Page 9: LIQUID HELIUM PART 1

Connection with BEC

Pradip Kumar Mondal (ESSBC) April 22, 2020 9 / 6

Page 10: LIQUID HELIUM PART 1

Two-fluid model

Pradip Kumar Mondal (ESSBC) April 22, 2020 10 / 6

Page 11: LIQUID HELIUM PART 1

Two-fluid model

Pradip Kumar Mondal (ESSBC) April 22, 2020 11 / 6

Page 12: LIQUID HELIUM PART 1

Andronikashvilis experiment

Pradip Kumar Mondal (ESSBC) April 22, 2020 12 / 6

Page 13: LIQUID HELIUM PART 1

Viscosity measurement

Pradip Kumar Mondal (ESSBC) April 22, 2020 13 / 6

Page 14: LIQUID HELIUM PART 1

Boiling helium

Pradip Kumar Mondal (ESSBC) April 22, 2020 14 / 6

Page 15: LIQUID HELIUM PART 1

Fountain effect

Pradip Kumar Mondal (ESSBC) April 22, 2020 15 / 6

Page 16: LIQUID HELIUM PART 1

Viscosity experiments explained

Pradip Kumar Mondal (ESSBC) April 22, 2020 16 / 6

Page 17: LIQUID HELIUM PART 1

Fountain effect explained

Pradip Kumar Mondal (ESSBC) April 22, 2020 17 / 6

Page 18: LIQUID HELIUM PART 1

Silent boiling explained

Pradip Kumar Mondal (ESSBC) April 22, 2020 18 / 6

Page 19: LIQUID HELIUM PART 1

Silent boiling explained

Pradip Kumar Mondal (ESSBC) April 22, 2020 19 / 6