How to make superconducting circuits out of a semiconductor

How to make superconducting circuits out of a semiconductor

Superconducting circuits are exceptionally flexible, enabling many different devices from sensors to quantum computers. Separately, epitaxial semiconductor devices such as spin qub...

On-chip cavity quantum phonodynamics and acceptor qubits in silicon

On-chip cavity quantum phonodynamics and acceptor qubits in silicon

We show how long-lived and tunable acceptor impurity states in silicon nanomechanical cavities can play the role of a matter non-linearity for coherent phonons just as, e.g., the J...

Introducing the phoniton: A sound-based analogue of cavity-QED, a tool for controlling sound at the quantum level

Introducing the phoniton: A sound-based analogue of cavity-QED, a tool for controlling sound at the quantum level

This work explores the possibility of a new, man-made quantum object: a hybridization of a localized, long-lived phonon (a quantum of sound) and a matter excitation. That this is p...

Relaxation of silicon quantum dot qubits (Updated!)

Relaxation of silicon quantum dot qubits (Updated!)

The spin of an electron in silicon may act as an information carrier in future information technologies, from quantum computers to spintronics. For quantum information applications...

Quantum Information Technology and Industry

Quantum Information Technology and Industry

A new era of physics careers in industry is about to begin, based on the quantum information science/technology (QIS/T) revolution. Whether this statement is true, or can be made t...

Quantum phase transitions of light

Quantum phase transitions of light

As physics and engineering extend their reach to the control of single excitations of nature, we gain the ability to explore and even design the interaction of matter and energy in...

News


Preprint: Superconducting-semiconductor quantum devices: from qubits to particle detectors
Aug 10, 2014 | by | Read →

How to build advanced superconducting quantum devices in silicon, germanium, or diamond!...

Yun-Pil Shim giving invited talk at the APS March Meeting
Mar 1, 2014 | by | Read →

Find out the latest developments in our bottom-up superconducting silicon work....

Charles Tahan selected to receive the Presidential Early Career Award for Scientists and Engineers (PECASE)
Dec 23, 2013 | by | Read →

President Obama today named 102 researchers as recipients of the Presidential Early Career Awards for Scientists and Engineers, the highest honor bestowed by the United States Gove...

Preprint: Bottom-up superconducting and Josephson junction devices inside a Group-IV semiconductor
Sep 2, 2013 | by | Read →

We propose superconducting devices made from precision hole-doped regions within a silicon (or germanium) single crystal. We analyze the properties of this superconducting semicond...

Phys. Rev. B: On-chip cavity quantum phonodynamics with an acceptor qubit in silicon
Aug 30, 2013 | by | Read →

We describe a chip-based, solid-state analog of cavity-QED utilizing acoustic phonons instead of photons. We show how long-lived and tunable acceptor impurity states in silicon nan...

Preprint: Observation of Autler-Townes effect in a dispersively dressed Jaynes-Cummings system
Aug 9, 2013 | by | Read →

Two-tone spectroscopy of a superconducting transmon qubit in a cavity. We find evidence of strongly-coupled atomic physics in these man-made systems. Superconducting qubits and...

Nature Communications: Spin-valley lifetimes in a silicon quantum dot with tunable valley splitting
Jun 27, 2013 | by | Read →

New theory for spin-valley anticrossing and spin-relaxation in realistic silicon quantum dots. Silicon quantum dots are promising for quantum computing as they offer low memory ...

Technology and Society


Nanotechnology, Quantum Information Technology, Society: Course, Definitions, Essays
Feb 8, 2008 | by | Read →

Exploring advanced classical and quantum technologies and their societal implications. Definitions and essays on nanotechnology and quantum technology....

Quantum Information Technology and Industry
Feb 7, 2008 | by | Read →

A new era of physics careers in industry is about to begin, based on the quantum information science/technology (QIS/T) revolution. Whether this statement is true, or can be made t...

Spookytechnology and Society
Oct 12, 2007 | by | Read →

Spookytechnology and Society: Understanding and anticipating the second revolution in quantum-designed technologies Download the article this summary is based on: C. Tahan, Spookyt...

Preprint: Spookytechnology and Society
Oct 12, 2007 | by | Read →

New technologies based on the exploitation of so-called "second order" quantum phenomena - such as quantum entanglement - deserve a public-friendly, rational, and sexy name. Spooky...

Chapter: The Nanotechnology R(evolution)
Dec 23, 2006 | by | Read →

Nanotechnology as a social concept and investment focal point has drawn much attention. Here we consider the place of nanotechnology in the second great technological revolution of...

Identifying Nanotechnology in Society
Dec 9, 2006 | by | Read →

Manufacturing materials and systems with components thousands of times smaller than the width of a human hair promises vast and sometimes unimaginable advances in technology. Yet t...

Identifying Nanotechnology in Society
Dec 8, 2006 | by | Read →

preprint; Chapter inĀ Advances in Computers 71:Nanotechnology, edited Marvin Zelkowitz, Elsevier, 2007 Identifying Nanotechnology in Society Charles Tahan Cavendish Laboratory, Uni...


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How to make superconducting circuits out of a semiconductor
How to make superconducting circuits out of a semiconductor

Superconducting circuits are exceptionally flexible, enabling many different devices from sensors to quantum computers. Separately, epitaxial semiconductor devices such as spin qub...

More in

Papers

Phys. Rev. B: On-chip cavity quantum phonodynamics with an acceptor qubit in silicon
Phys. Rev. B: On-chip cavity quantum phonodynamics with an acceptor qubit in silicon

We describe a chip-based, solid-state analog of cavity-QED utilizing acoustic phonons instead of photons. We show how long-lived and tunable acceptor impurity states in silicon nan...

More in

Preprints

Preprint: Superconducting-semiconductor quantum devices: from qubits to particle detectors
Preprint: Superconducting-semiconductor quantum devices: from qubits to particle detectors

How to build advanced superconducting quantum devices in silicon, germanium, or diamond!...

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Talks

March Meeting 2013: Invited talk on cavity quantum phonodynamics, talks on spin-valley relaxation and many-body phononic systems.
March Meeting 2013: Invited talk on cavity quantum phonodynamics, talks on spin-valley relaxation and many-body phononic systems.

This year's APS March Meeting in Baltimore was unquestionably a good one. It seemed like everyone showed up. We were happy to be able to give an invited talk on cavity quantum phon...

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Press

The Physics arXiv Blog highlights the acceptor:Si quantum phonodynamics preprint
The Physics arXiv Blog highlights the acceptor:Si quantum phonodynamics preprint

The science of how light interacts with matter is called quantum electrodynamics or QED and the theory on which it is based is one of the crowning achievements of 20th century phys...

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