- #1
BLUE_CHIP
I was wondering if anybody had any information on Quantum Mechanical Transistors.
What Are Quantum Mechanical Transistors?
- Thread starter BLUE_CHIP
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SUMMARY
Quantum Mechanical Transistors, specifically single electron transistors and Double Electron Layer Tunneling Transistors (DELTT), utilize quantum wells to confine electrons in three dimensions. By applying a voltage to a gate capacitively coupled to the quantum well, the energy levels and occupancy of electron states can be manipulated, allowing for extreme sensitivity to voltage changes. This technology is pivotal in advancing quantum computing and nanoelectronics, as it can detect single electrons and enhance performance in electronic devices.
PREREQUISITES- Understanding of quantum mechanics principles
- Familiarity with electrical engineering concepts
- Knowledge of semiconductor physics
- Experience with electronic circuit design
- Research the principles of single electron transistors
- Explore the design and functionality of Double Electron Layer Tunneling Transistors (DELTT)
- Study quantum well structures and their applications in electronics
- Investigate the impact of quantum mechanical effects on semiconductor devices
Electrical engineering graduate students, researchers in quantum computing, and professionals involved in the development of advanced electronic devices will benefit from this discussion.
- #2
- #3
BLUE_CHIP
The first time that I checked this thread which was a very very very long time ago, i didnt notice that wimms had posted a google search.
Please can someone give me another link or more information, and not another seach engine with 'Quantum Mechanical Transistors' typed in the search bar.....
Please can someone give me another link or more information, and not another seach engine with 'Quantum Mechanical Transistors' typed in the search bar.....
- #4
Integral
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Since ALL transistors are Quantum Mechanical it is not not clear, to me, just what you are looking for.
- #5
QuantumCowboy
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You're talking about quantum dots (or single electron transistors). I'm a graduate student in electrical engineering and this is my field; so, you're in luck.
Basically, they work as follows. You've got a small quantum well which confines electrons in all three dimensions... they have zero degrees of freedom. The wavefunctions of the electrons take on modes in these quantum wells. By changing the energy level in the well, you can change the occupancy of the states in the well. Changing the energy level in the well simply involves applying a voltage to a gate that is capacitively coupled to this system. If the gate is properly coupled to the system, then the transport properties of the system will be extremely to even the slightest change in voltage on the gate. In fact these systems can be made so as to detect a single electron.
Let me know if you have anymore questions.
QuantumCowboy
Basically, they work as follows. You've got a small quantum well which confines electrons in all three dimensions... they have zero degrees of freedom. The wavefunctions of the electrons take on modes in these quantum wells. By changing the energy level in the well, you can change the occupancy of the states in the well. Changing the energy level in the well simply involves applying a voltage to a gate that is capacitively coupled to this system. If the gate is properly coupled to the system, then the transport properties of the system will be extremely to even the slightest change in voltage on the gate. In fact these systems can be made so as to detect a single electron.
Let me know if you have anymore questions.
QuantumCowboy
- #6
BLUE_CHIP
This is superb 
This is the product which I was originally referring to is:
I know its a very old news release however I was just wondering if there was any tech info on the quantum mechs of it.
If u had any diagrams or text that you could point me to I would be very greatfull.
Ta, QuantumCowboy
This is the product which I was originally referring to is:
I know its a very old news release however I was just wondering if there was any tech info on the quantum mechs of it.
If u had any diagrams or text that you could point me to I would be very greatfull.
Ta, QuantumCowboy
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