The online notebook of Michael Nielsen. My work
aims to help create systems which support creativity and
discovery. Currently, my main projects are working on metascience, programmable
matter, and tools for
thought. In the past I've worked on quantum
computing, open science,
and artificial
intelligence, and there's a lot of crossover with my current
interests. Bio
(2020).
I like to write books. You can also get a
sense of some of my favorite
projects over the years. And some of my current work is
described below.
I'm a Research Fellow at the
Astera Institute.
Tags: quantum,
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personal,
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writing,
life, gtd, search, asi, dod, interview,
conversation,
ea, design, quanta, publishing,
geometry,
working,
self, email, places, climate,
art, video, top, research,
thesis
Ongoing: LLM
uses, reading,
places,
questions,
quotes,
slow, sporadica,
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template
Want to hear about my projects as they're released? Please join
my announcements mailing list.
Elsewhere:
Books
I believe far better social processes are possible in science,
processes that can activate great latent potential for discovery.
However, at present the social processes mostly change only very
slowly, despite clear problems. How can we create a world in which
science rapidly and routinely greatly improves its social
processes? Much of my thinking is under the scienceplusplus
tag; here's a few selected items:
The Future of Matter
It is sometimes implied physics is near an end – a "theory of
everything" – because we understand so much about the basic rules
governing matter and our universe. That's like assuming computer
science would end with the Turing machine, computing's "theory of
everything". Of course, it kickstarted a massive explosion. I
believe we're currently beginning to do for matter what Turing and
successors did for computing. Can we make matter truly
programmable? Can we invent new high-level abstractions and design
ides, doing for matter what people like John McCarthy, Alan Kay,
and co did for computing? Much of my thinking is under the fom tag;
here's a few selected items:
Selected Projects
A fuller listing may be found here.
- The
Sacrifices We Choose to Make (Michael Nielsen) 2025-07-13
- How
to be a wise optimist about science and technology?
2024-12-01
- Notes
on Existential Risk from Artificial Superintelligence
2023-09-18
- A
Vision of Metascience: An Engine of Improvement for the Social
Processes of Science (Michael Nielsen and Kanjun Qiu)
2022-10-18
- Notes on
Effective Altruism 2022-06-02
- Cosmos:
working notes, 1 2022-02-16
- The
trouble in comparing different approaches to science funding
(Michael Nielsen and Kanjun Qiu) 2022-02-09
- Maps
of Matter 2021-02-01
- How can we
develop transformative tools for thought? (Andy Matuschak and
Michael Nielsen) 2019-10-03
- Quantum Country (Andy
Matuschak and Michael Nielsen) 2019-03-19
- Science
is getting less bang for its buck (Patrick Collison and
Michael Nielsen) 2018-11-15
- Augmenting
Long-term Memory 2018-07-05
- Using Artificial
Intelligence to Augment Human Intelligence (Shan Carter and
Michael Nielsen) 2017-12-04
- Thought as
a Technology 2017-11-29
- Magic
Paper 2017-11-05
- Toward an
Exploratory Medium for Mathematics 2016-02-28
- Reinventing
Explanation 2014-01-31
- Neural
Networks and Deep Learning 2013-11-25
- The
Artist and the Machine 2013-02-06
- Lisp
as the Maxwell's equations of software 2012-04-11
- If
correlation doesn't imply causation, then what does?
2012-01-23
- Reinventing
Discovery: the New Era of Networked Science 2011-10-23
- Massively
collaborative mathematics (Tim Gowers and Michael Nielsen)
2009-10-15
- Is
Scientific Publishing About to Be Disrupted? 2009-06-29
- Doing
Science Online 2009-01-26
- The
future of science 2008-07-17
- The geometry
of quantum computation (Mark R. Dowling and Michael A.
Nielsen) 2006-12-31
- Quantum
computation as geometry (Michael A. Nielsen, Mark R. Dowling,
Mile Gu, and Andrew C. Doherty) 2006-03-19
- Optimal
control, geometry, and quantum computing (Michael A. Nielsen,
Mark R. Dowling, Mile Gu, and Andrew C. Doherty) 2006-03-19
- Noise
thresholds for optical cluster-state quantum computation
(Christopher M. Dawson, Henry L. Haselgrove, and Michael A.
Nielsen) 2006-01-11
- Noise
thresholds for optical quantum computers (Christopher M.
Dawson, Henry L. Haselgrove, and Michael A. Nielsen)
2005-09-09
- The
Fermionic canonical commutation relations and the Jordan-Wigner
transform 2005-07-29
- Algebraic and
information-theoretic conditions for operator quantum error
correction (Michael A. Nielsen and David Poulin)
2005-06-09
- The
Solovay-Kitaev algorithm (Christopher M. Dawson and Michael A.
Nielsen) 2005-05-06
- Cluster-state
quantum computation 2005-04-13
- Quantum
computing and polynomial equations over the finite field
Z2 (Christopher M. Dawson, Henry L. Haselgrove,
Andrew P. Hines, Duncan Mortimer, Michael A. Nielsen, and Tobias
J. Osborne) 2004-08-20
- Distance
measures to compare real and ideal quantum processes (Alexei
Gilchrist, Nathan K. Langford, and Michael A. Nielsen)
2004-08-10
- Fault-tolerant
quantum computation with cluster states (Michael A. Nielsen
and Christopher M. Dawson) 2004-05-23
- Simulating
Hamiltonian dynamics using many-qudit Hamiltonians and local
unitary control (Michael J. Bremner, Dave Bacon, and Michael
A. Nielsen) 2004-05-20
- Interesting
problems: The Church-Turing-Deutsch Principle 2004-04-16
- Optical
quantum computation using cluster states 2004-02-02
- Extreme
Thinking 2003-09-07
- Fungible
dynamics: There are only two types of entangling multiple-qubit
interactions (Michael J. Bremner, Jennifer L. Dodd, Michael A.
Nielsen, and Dave Bacon) 2003-07-21
- Simple
Rules for a Complex Quantum World 2002-11-01
- An
introduction to majorization and its applications to quantum
mechanics (draft of a book) 2002-10-18
- Universal
simulation of Hamiltonian dynamics for quantum systems with
finite-dimensional state spaces (Michael A. Nielsen, Michael
J. Bremner, Jennifer L. Dodd, Andrew M. Childs, and Christopher M.
Dawson) 2002-05-31
- Entanglement,
quantum phase transitions, and density matrix renormalization
(Tobias J. Osborne and Michael A. Nielsen) 2001-09-05
- Universal
quantum computation and simulation using any entangling
Hamiltonian and local unitaries (Jennifer L. Dodd, Michael A.
Nielsen, Michael J. Bremner, and Robert T. Thew) 2001-06-12
- Majorization
and the interconversion of bipartite states (Michael A.
Nielsen and Guifré Vidal) 2001-05-28
- Separable
states are more disordered globally than locally (Michael A.
Nielsen and Julia Kempe) 2000-11-30
- Quantum
Computation and Quantum Information (Michael A. Nielsen and
Isaac L. Chuang) 2000-10-01
- Characterizing
mixing and measurement in quantum mechanics 2000-08-16
- Conditions
for a class of entanglement transformations 1998-11-20
- Complete
quantum teleportation using nuclear magnetic resonance
(Michael A. Nielsen, Emanuel Knill, and Raymond Laflamme)
1998-11-08
- Quantum
information theory (PhD dissertation) 1998-08-15
- Programmable
Quantum Gate Arrays (M. A. Nielsen and Isaac L. Chuang)
1997-03-18
- Information
transmission through a noisy quantum channel (Howard Barnum,
Michael A. Nielsen, and Benjamin Schumacher) 1997-02-26
- Quantum
data processing and error correction (Benjamin Schumacher and
M. A. Nielsen) 1996-10-01