Black Holes and Baby Universes

Black Holes and Baby Universes

In these thirteen essays and one remarkable extended interview, the man widely regarded as the most brilliant theoretical physicist since Einstein returns to reveal an amazing array of possibilities for understanding our universe.

Author: Stephen Hawking

Publisher: Bantam

ISBN: 9780307790453

Category: Science

Page: 192

View: 770

NEW YORK TIMES BESTSELLER • Thirteen extraordinary essays shed new light on the mystery of the universe—and on one of the most brilliant thinkers of our time. In his phenomenal bestseller A Brief History of Time, Stephen Hawking literally transformed the way we think about physics, the universe, reality itself. In these thirteen essays and one remarkable extended interview, the man widely regarded as the most brilliant theoretical physicist since Einstein returns to reveal an amazing array of possibilities for understanding our universe. Building on his earlier work, Hawking discusses imaginary time, how black holes can give birth to baby universes, and scientists’ efforts to find a complete unified theory that would predict everything in the universe. With his characteristic mastery of language, his sense of humor and commitment to plain speaking, Stephen Hawking invites us to know him better—and to share his passion for the voyage of intellect and imagination that has opened new ways to understanding the very nature of the cosmos.
Categories: Science

Black Holes Baby Universes and Random Matrices

Black Holes  Baby Universes  and Random Matrices

In this work we focus on understanding certain probes of the discreteness of the black hole energy spectrum which exhibit this tension, such as an averaged version of the two-point function of operators widely separated in time outside of a ...

Author: Philip Saad

Publisher:

ISBN: OCLC:1183028780

Category:

Page:

View: 921

There is a lot of evidence that black holes follow the usual rules of quantum mechanics, and exhibit all of the fundamental properties of quantum systems such as a discrete set of energy levels. However, many of these properties are difficult to see directly in gravity; there is an apparent tension between the gravitational description of black holes in terms of smooth geometry and the discrete 'quantum' aspects of quantum mechanics. In this work we focus on understanding certain probes of the discreteness of the black hole energy spectrum which exhibit this tension, such as an averaged version of the two-point function of operators widely separated in time outside of a black hole in AdS space. The chaotic dynamics of black holes indicates that its energy levels should have random matrix statistics, and its energy eigenstates should obey the Eigenstate Thermalization Hypothesis. These expectations allow us to make precise predictions for the behavior of our probes. We find strong evidence that contributions from spacetime geometries with nontrivial topology, and even arbitrary numbers of disconnected components, are responsible for reproducing the expected behavior of our probes. Physically, these contributions correspond to including effects from the absorption and emission of closed 'baby' universes from the black hole spacetime. These processes have a small amplitude, but may provide the dominant contribution to the transitions between very distinct states of the black hole.
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Black Holes

Black Holes

Black holes are stranger than anything dreamed up by science-fiction writers, but they are firmly matters of science fact.” For decades, Stephen Hawking has been fascinated by black holes.

Author: Stephen Hawking

Publisher: Bantam

ISBN: 9780399179006

Category: Science

Page: 71

View: 274

The legendary physicist explores his favorite subject in a pair of enlightening, accessible, and cleverly illustrated essays for curious readers, originally delivered as BBC lectures. “It is said that fact is sometimes stranger than fiction, and nowhere is that more true than in the case of black holes. Black holes are stranger than anything dreamed up by science-fiction writers, but they are firmly matters of science fact.” For decades, Stephen Hawking has been fascinated by black holes. He believes that if we understood the challenges they pose to the very nature of space and time, we could unlock the secrets of the universe. In these conversational pieces, Hawking’s sense of wonder is infectious as he holds forth on what we know about black holes, what we still don’t know, and theoretical answers to more specific questions, such as: What would happen if you ever got sucked into one? Annotated and with an introduction by BBC News science editor David Shukman, featuring whimsical and illuminating illustrations, Black Holes offers a candid peek into one of the great scientific mysteries of all time. Praise for Stephen Hawking “[Hawking] can explain the complexities of cosmological physics with an engaging combination of clarity and wit. . . . His is a brain of extraordinary power.”—The New York Review of Books “Hawking clearly possesses a natural teacher’s gifts—easy, good-natured humor and an ability to illustrate highly complex propositions with analogies plucked from daily life.”—The New York Times “A high priest of physics, one of a handful of theorists who may be on the verge of reading God’s mind.”—Los Angeles Times
Categories: Science

Hawking on the Big Bang and Black Holes

Hawking on the Big Bang and Black Holes

Andrei Linde (Stanford) "This review could have been quite short: 'The book contains a selection of 21 of Stephen Hawking's most significant papers with an overview written by the author'. This w

Author: Stephen W. Hawking

Publisher: World Scientific

ISBN: 9810210787

Category: Science

Page: 312

View: 418

Stephen Hawking, the Lucasian Professor of Mathematics at Cambridge University, has made important theoretical contributions to gravitational theory and has played a major role in the development of cosmology and black hole physics. Hawking's early work, partly in collaboration with Roger Penrose, showed the significance of spacetime singularities for the big bang and black holes. His later work has been concerned with a deeper understanding of these two issues. The work required extensive use of the two great intellectual achievements of the first half of the Twentieth Century: general relativity and quantum mechanics; and these are reflected in the reprinted articles. Hawking's key contributions on black hole radiation and the no-boundary condition on the origin of the universe are included. The present compilation of Stephen Hawking's most important work also includes an introduction by him, which guides the reader though the major highlights of the volume. This volume is thus an essentialitem in any library and will be an important reference source for those interested in theoretical physics and applied mathematics. It is an excellent thing to have so many of Professor Hawking's most important contributions to the theory of black holes and space-time singularities all collected together in one handy volume. I am very glad to have them". Roger Penrose (Oxford) "This was an excellent idea to put the best papers by Stephen Hawking together. Even his papers written many years ago remain extremely useful for those who study classical and quantum gravity. By watching the evolution of his ideas one can get a very clear picture of the development of quantum cosmology during thelast quarter of this century". Andrei Linde (Stanford) "This review could have been quite short: 'The book contains a selection of 21 of Stephen Hawking's most significant papers with an overview written by the author'. This w
Categories: Science

Black Holes and Baby Universes Cover Baru

Black Holes and Baby Universes  Cover Baru

Sekarang, Stephen Hawking datang lagi untuk membersitkan cahaya baru ke kawasan-kawasan paling gelap dalam ruangwaktu... dan menyingkapkan sederet kemungkinan baru dalam memahami jagat raya.

Author: Stephen Hawking

Publisher: Gramedia Pustaka Utama

ISBN: 9786020643700

Category: Science

Page: 214

View: 201

Dalam bukunya yang fenomenal, A Brief History of Time, Stephen Hawking dengan tegas mengubah cara berpikir kita tentang fisika, jagat raya, dan realitas. Melalui buku tersebut, Stephen Hawking, sebagai fisikawan teoretis paling cemerlang sejak Einstein, telah membuka pikiran kita untuk menerima gagasan-gagasan ilmiah paling penting dewasa ini tentang kosmos. Sekarang, Stephen Hawking datang lagi untuk membersitkan cahaya baru ke kawasan-kawasan paling gelap dalam ruangwaktu... dan menyingkapkan sederet kemungkinan baru dalam memahami jagat raya.
Categories: Science

Black Holes The Reith Lectures

Black Holes  The Reith Lectures

Black holes are stranger than anything dreamed up by science fiction writers.” In 2016 Professor Stephen Hawking delivered the BBC Reith Lectures on a subject that fascinated him for decades – black holes.

Author: Stephen Hawking

Publisher: Random House

ISBN: 9781473541986

Category: Science

Page: 80

View: 178

“It is said that fact is sometimes stranger than fiction, and nowhere is that more true than in the case of black holes. Black holes are stranger than anything dreamed up by science fiction writers.” In 2016 Professor Stephen Hawking delivered the BBC Reith Lectures on a subject that fascinated him for decades – black holes. In these flagship lectures the legendary physicist argued that if we could only understand black holes and how they challenge the very nature of space and time, we could unlock the secrets of the universe.
Categories: Science

Black Holes and Baby Universes and Other Essays

Black Holes and Baby Universes and Other Essays

The bestselling follow-up to Hawking's phenomenal million-copy hardcover bestseller A Brief History of Time is now available in trade paperback.

Author: Stephen Hawking

Publisher: Turtleback Books

ISBN: 1417715650

Category: Science

Page: 172

View: 546

The bestselling follow-up to Hawking's phenomenal million-copy hardcover bestseller A Brief History of Time is now available in trade paperback. These 14 pieces reveal Hawking variously as the scientist, the man, the concerned world citizen, and--always--the rigorous and imaginative thinker.
Categories: Science

Black Holes and Baby Universes

Black Holes and Baby Universes

Covering subjects ranging from the personal to the scientific, this is a collection of Stephen Hawking's essays and other pieces.

Author: Stephen W. Hawking

Publisher:

ISBN: 0553408585

Category: Cosmology

Page: 172

View: 105

Categories: Cosmology

A Brief History of Time

A Brief History of Time

Author: Stephen W. Hawking

Publisher:

ISBN: 1850893152

Category: Space and time

Page: 251

View: 393

Categories: Space and time

The Illustrated Brief History of Time

The Illustrated Brief History of Time

This is Stephen Hawking's updated, expanded, and illustrated edition of his celebrated work which includes the most recent developments in the field, many of which were forecast by him.

Author: Stephen Hawking

Publisher: Bantam Press

ISBN: 0593077180

Category: Cosmology

Page: 256

View: 817

An updated, expanded and illustrated edition of Stephen Hawking's classic work, which includes the most recent developments in the field, many of which were forecast by him. In this edition, Professor Hawking explains his complex theories through a fresh visual dimension. Over one hundred and fifty stunning colour illustrations have been specially commissioned for this purpose to help the reader understand what have become popular mythic images of our century, but which nonetheless remain difficult, abstract ideas to grasp.
Categories: Cosmology

My Brief History

My Brief History

Tracing his development as a thinker, he explains how the prospect of an early death urged him onward through numerous intellectual breakthroughs, and talks about the genesis of his masterpiece A Brief History of Time—one of the iconic ...

Author: Stephen Hawking

Publisher: Bantam

ISBN: 9780345539137

Category: Science

Page: 144

View: 509

NATIONAL BESTSELLER Stephen Hawking has dazzled readers worldwide with a string of bestsellers exploring the mysteries of the universe. Now, for the first time, perhaps the most brilliant cosmologist of our age turns his gaze inward for a revealing look at his own life and intellectual evolution. My Brief History recounts Stephen Hawking’s improbable journey, from his postwar London boyhood to his years of international acclaim and celebrity. Lavishly illustrated with rarely seen photographs, this concise, witty, and candid account introduces readers to a Hawking rarely glimpsed in previous books: the inquisitive schoolboy whose classmates nicknamed him Einstein; the jokester who once placed a bet with a colleague over the existence of a particular black hole; and the young husband and father struggling to gain a foothold in the world of physics and cosmology. Writing with characteristic humility and humor, Hawking opens up about the challenges that confronted him following his diagnosis of ALS at age twenty-one. Tracing his development as a thinker, he explains how the prospect of an early death urged him onward through numerous intellectual breakthroughs, and talks about the genesis of his masterpiece A Brief History of Time—one of the iconic books of the twentieth century. Clear-eyed, intimate, and wise, My Brief History opens a window for the rest of us into Hawking’s personal cosmos.
Categories: Science

The Theory Of Everything With Cd

The Theory Of Everything  With Cd

It would be like hearing Christopher Columbus on the New World.Hawking presents a series of seven lec-tures covering everything from big bang to black holes to string theory that capture not only the brilliance of Hawking s mind but his ...

Author: Stephen Hawking

Publisher:

ISBN: 8179927938

Category:

Page: 140

View: 638

Collector s Edition with Audiobook read by the AuthorStephen Hawking is widely believed to be one of the world s greatest minds: a brilliant theoretical physicist whose work helped to reconfigure models of the universe and to redefine what s in it. Imagine sitting in a room listening to Hawking discuss these achievements and place them in historical context. It would be like hearing Christopher Columbus on the New World.Hawking presents a series of seven lec-tures covering everything from big bang to black holes to string theory that capture not only the brilliance of Hawking s mind but his characteristic wit as well. Of his research on black holes, which absorbed him for more than a decade, he says, It might seem a bit like looking for a black cat in a coal cellar. Hawking begins with a history of ideas about the universe, from Aristotle s determination that the Earth is round to Hubble s discovery, over 2000 years later, that the universe is expanding. Using that as a launching pad, he explores the reaches of modern physics, including theories on the origin of the universe (e.g., the big bang), the nature of black holes, and space-time.
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The Universe in a Nutshell

The Universe in a Nutshell

He conveys the excitement felt at present within the scientific community as he travels with us through an Alice in Wonderland universe of ten dimensions; which might be just one of the many alternative histories, where black holes ...

Author: Stephen W. Hawking

Publisher:

ISBN: 0593048156

Category: Cosmology

Page: 216

View: 256

In this brilliant sequel to the phenomenally successful A BRIEF HISTORY OF TIME Stephen Hawking unravels the amazing theoretical breakthroughs that have happened during the decade that followed the publication of that bestseller. In an erudite yet accessible style Hawkins guides us through the evolution of Einstein's relativity, the uncertainty principle, quantum mechanics, five string theories, M-theory and the mysterious p-branes that seem to pave the way for that grail of theoretical physics - the big TOE - the Theory of Everything. He conveys the excitement felt at present within the scientific community as he travels with us through an Alice in Wonderland universe of ten dimensions; which might be just one of the many alternative histories, where black holes evaporate, superstrings curl up on themselves and parallel universes contract to nothing. Beautifully illustrated throughout, with original artwork commissioned for this project, THE UNIVERSE IN A NUTSHELL is guaranteed to be the biggest science book of 2001.
Categories: Cosmology

The Large Scale Structure of Space Time

The Large Scale Structure of Space Time

This 1973 book discusses Einstein's General Theory of Relativity and its predictions concerning black holes and singularities in space-time itself.

Author: S. W. Hawking

Publisher: Cambridge University Press

ISBN: 0521099064

Category: Science

Page: 391

View: 452

This 1973 book discusses Einstein's General Theory of Relativity and its predictions concerning black holes and singularities in space-time itself.
Categories: Science

The Nature of Space and Time

The Nature of Space and Time

Can quantum and cosmos ever be combined? In The Nature of Space and Time, two of the world’s most famous physicists—Stephen Hawking (A Brief History of Time) and Roger Penrose (The Road to Reality)—debate these questions.

Author: Stephen Hawking

Publisher: Princeton University Press

ISBN: 9781400834747

Category: Science

Page: 160

View: 252

From two of the world's great physicists—Stephen Hawking and Nobel laureate Roger Penrose—a lively debate about the nature of space and time Einstein said that the most incomprehensible thing about the universe is that it is comprehensible. But was he right? Can the quantum theory of fields and Einstein's general theory of relativity, the two most accurate and successful theories in all of physics, be united into a single quantum theory of gravity? Can quantum and cosmos ever be combined? In The Nature of Space and Time, two of the world’s most famous physicists—Stephen Hawking (A Brief History of Time) and Roger Penrose (The Road to Reality)—debate these questions. The authors outline how their positions have further diverged on a number of key issues, including the spatial geometry of the universe, inflationary versus cyclic theories of the cosmos, and the black-hole information-loss paradox. Though much progress has been made, Hawking and Penrose stress that physicists still have further to go in their quest for a quantum theory of gravity.
Categories: Science

Brief Answers to the Big Questions

Brief Answers to the Big Questions

This limited edition features the 'Big Questions Puzzle' devised by Josh Kirklin, a PhD student in Stephen Hawking's department at the University of Cambridge, and is inspired by the ten big questions in the book:Is there a God?How did it ...

Author: Stephen Hawking

Publisher: John Murray

ISBN: 152936275X

Category:

Page: 256

View: 950

NEW LIMITED EDITION OF THE SUNDAY TIMES No.1 BESTSELLER'A beautiful little book by a brilliant mind' DAILY TELEGRAPH'Effortlessly instructive, absorbing, up to the minute and - where it matters - witty' GUARDIANThe world-famous cosmologist and #1 bestselling author of A BRIEF HISTORY OF TIME leaves us with his final thoughts on the universe's biggest questions in this brilliant posthumous work. This limited edition features the 'Big Questions Puzzle' devised by Josh Kirklin, a PhD student in Stephen Hawking's department at the University of Cambridge, and is inspired by the ten big questions in the book:Is there a God?How did it all begin?Is there other intelligent life in the universe?Can we predict the future?What is inside a black hole?Is time travel possible?Will we survive on Earth?Should we colonise space?Will artificial intelligence outsmart us?How do we shape the future?Throughout his extraordinary career, Stephen Hawking expanded our understanding of the universe and unravelled some of its greatest mysteries. But even as his theoretical work on black holes, imaginary time and multiple histories took his mind to the furthest reaches of space, Hawking always believed that science could also be used to fix the problems on our planet.And now, as we face potentially catastrophic changes here on Earth - from climate change to dwindling natural resources to the threat of artificial super-intelligence - Stephen Hawking turns his attention to the most urgent issues for humankind.Wide-ranging, intellectually stimulating, passionately argued, and infused with his characteristic humour, BRIEF ANSWERS TO THE BIG QUESTIONS, the final book from one of the greatest minds in history, is a personal view on the challenges we face as a human race, and where we, as a planet, are heading next.
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